Specifications

T3 Line Interface Connector:

BNC connector per ANSI T1.404

T3 Cable Recommended:

Coax, 75 ohm, 728A or equivalent

T3 Line Signal:

DSX-3 Specification per ANSI T1.102 and ATT PUB 54014

T3 Line Rate:

44.736 Mbps ± 895 bps

T3 Framing:

Asynch. C-bit Parity per ANSI T1.107a

Input Jitter Tolerance:

Per ATT TR 54014, Category II Equipment

Output Jitter Generation:

Per ATT TR 54014, Table B1, "Equipment with DS3 Oscillator" Category

PMD Layer Alarms:

LOS, OOF, AIS, RAI

PMD Layer Performance Statistics:

LCV, LES,%EFS, LSES, SEFS, PCV, PES, PSES, SEFS, UAS

Trans. Convergence Protocol:

PLCP per TR-TSV-000773

TC Layer Alarms:

OOF, RAI

TC Layer Performance Statistics:

BIP8-CV, BIP8-ES, BIP8-SES, SEFS, UAS

ATM Layer Protocol:

Header check sum is XORed with the COSET function (0x55) per CCITT I.361

ATM Layer Counters:

Number of cells received good
Number of cells received and discarded due to bad HEC
Number of cells transmitted good
Number of cells received from cell bus
Number of cells transmitted to cell bus

Diagnostics:

Header of first cell received with invalid egress
translation entries
Number of cells dropped due to invalid egress
translation entries

Synchronization:

Derives 8KHz shelf synchronization clock
from a variety of sources:

· internal 8 kHz clock (10 ppm)

· BNM-T3 PLCP

· external T1/E1 clock port with a clock rate of
1.544 Mbps±50 bps (T1) or 2.048 Mbps±100 bps (E1)

External Office clock interface:

DB15 connector via LM-T3E3-D (T1/E1 clock)
BNC connector via LM-T3E3-B (E1 clock)
Alarm interface: CO compatible alarm indicator and contr
DB15 connector

Indicators:

Per Card: Active (Green), Failed (Red), Standby (Yellow)
T3 Interface: Active & Okay (Green)
Active & Local Alarm (Red)
Active & Remote Alarm (Yellow)

Minor DS-3 Statistical Alarm

Maintenance/Serviceability Features:

Internal Isolation Loopbacks
External remote loopback
Hot-pluggable

Reliability:

> 65000 hours MTBF

Card Size:

BNM-T3: 7.25"x 16.25"
LM-T3E3-D: 7.25" x 4.5"
LM-T3E3-B: 7.25" x 4.5"

Power:

-48V DC, 25W

E3 Line Interface Connector:

BNC connector per ANSI T1.404

E3 Cable Recommended:

Coax, 75 ohm, 728A or equivalent

E3 Line Signal:

Per G.703

E3 Line Rate:

34.368 Mbps ± 20 PPM

E3 Framing:

G.832 and G.804

Input Jitter Tolerance:

Per G.703

Output Jitter Generation:

Per G.703

PMD Layer Alarms:

LOS, OOF, AIS, RAI

PMD Layer Performance Statistics:

LCV, LES, %EFS, LSES, SEFS, PCV, PES, PSES, SEFS, UAS

Trans. Convergence Protocol:

PLCP per TR-TSV-000773

TC Layer Alarms:

OOF, RAI

TC Layer Performance Statistics:

BIP8-CV, BIP8-ES, BIP8-SES, SEFS, UAS

ATM Layer Protocol:

Header check sum is XORed with the COSET function (0x55) per CCITT I.361

ATM Layer Counters:

Number of cells received good

Number of cells received and discarded due to bad HEC

Number of cells transmitted good

Number of cells received from cell bus

Number of cells transmitted to cell bus

Diagnostics:

Header of first cell received with invalid egress translation entries

Number of cells dropped due to invalid egress translation entries

Number of unacknowledged cells transmitted to cell bus

Synchronization:

Derives 8KHz shelf synchronization clock from a variety of sources:

· E3 physical interface

· External T1/E1 clock port with a clock rate of
1.544 Mbps±50 bps (T1) or 2.048 Mbps±100 bps (E1)

External Office clock interface:

DB15 connector via LM-T3E3-D (T1/E1 clock)
BNC connector via LM-T3E3-B (E1 clock)

Alarm interface:

CO compatible alarm indicator and controls DB15 connector

Indicators:

Per Card:

Active (Green), Failed (Red), Standby (Yellow)

E3 Interface:

Active & Okay (Green)
Active & Local Alarm (Red)
Active & Remote Alarm (Yellow)

Minor DS-3 Statistical Alarm

Shelf Voltage:

A voltage OK (Green) B voltage OK (Green)

Alarms:

Major (Red), Minor (Yellow) ACO (Yellow), History (Green)

Maintenance/Serviceability Features:

Internal Isolation Loopbacks

External Remote Loopback

Hot-pluggable

Card Size:

BNM-T3: 7.25" x 16.25"

LM-T3E3-D: 7.25" x 4.5"

LM-T3E3-B: 7.25" x 4.5"

Power:

-48V DC, 25W

Framing:

SONET STS-3c per ANSI T1.105

PMD Layer Alarms:

Loss of Signal (LOS)
Severely Errored Framing (SEF)
Loss of Frame (LOF)
Line Alarm Indication Signal (AIS-L)
STS Path Alarm Indication Signal (AIS-P)
Line Remote Defect Indication (RDI-L)
Loss of Pointer (LOP)
STS Path Remote Defect Indication (RDI-P)

Transmission Convergence Protocol:

Per GR-253-CORE and ANSI T1.105

TC Layer Alarm:

Loss of Cell Delineation ((LCD)

ATM Layer Protocol:

Header check sum is XORed with the COSET function (0x55) per CCITT I.361

ATM Layer Counters:

Number of cells received good
Number of cells received and discarded due to bad HEC
Number of cells transmitted good

Diagnostics:

Number of cells received from Cell Bus
Number of cells transmitted to Cell Bus
Number of unacknowledged cells transmitted to Cell Bus
Header of first cell received with invalid egress translation errors
Number of cells dropped due to invalid ingress translation errors
Number of cells dropped due to invalid etress translation entries.

SMF Line Interface Connector

SC connectors

Fiber Recommendation

Single-mode

Maximum Fiber Length

20km

SMF Line Signal

Optical, SONET OC-3c per ANSI T1.105 and GR-253-CORE

SMF Line Rate

155.52 Mbps

Input Jitter Tolerance

Per Gr-253-CORE

Output Jitter Generation

Per Gr-253-CORE

Synchronization

Derives 8 kHz shelf synchronization clock from a variety of sources:
Internal 8 kHz (±10 ppm)
BNM-155 PLCP
External T1/E1 clock port with a clock rate of
1.544 MHz ±50 ppm (T1) or 2.048 MHz ± 100 bps (E1)

External Clock Interface

DB-15 connector or BNC connector (both are available)

Alarm Interface

CO compatible alarm indicator and controls via DB-15 connector

Indicators

Ten LEDs

· Per Card

Active (Green)
Failed (Red)
Standby (Amber)

· OC-3 Interface

Single multi-hue LED
Active and OK (Green)
Active and Local Alarm (Red)
Active and Remote Alarm (Amber)

· Shelf Voltage

A Voltage OK (Green)
B Voltage OK (Green)

· Alarms

Major (Red)
Minor (Amber)
ACO (Amber)
History (Green)

Maintenance Serviceablity Features

Internal isolation loopbacks
External remote loopbacks
Hot-pluggable

· Reliability

> 65000 hours MTBF

· Card Size

BNM-155: 7.25" x 16.25"
SMF-155-LM: 7.25" x 4.5"
UTP-155-LM: 7.25" x 4.5"

· Power

-48 DC, 25W

802.3 LAN Interface Connector:

AUI interface via DB-15 connector control port:
DB-25 RS232 connector; Asynch interface, 99200 baud, 1 start, 1 stop, No Parity

Trouble shooting interface:

Maintenance port: DB-25 RS232 connector; Asynch interface, 9600 baud, 1 start, 1 stop, No Parity

Indicators:

Per Card: Active (Green), Failed (Red), Standby (Yellow)

LAN activity Flashing green

Maintenance/ Serviceability Features:

RS232 maintenance/debug port

Internal Isolation Loopbacks

Hot-pluggable

Reliability:

> 65000 hours MTBF

Card Size:

ASC: 7.25" x 16.25"

LM_ASC: 7.0" x 4.5"

Power:

-48V DC, 25W

T1/E1 Line Interface Connector:

BNC-3T#
Standby SM requires a special Line Module:
R-DB15-4T1 if active cards use DB15-4T1
R-DB15-4E1 if active cards use DB15-4E1
R-BNC-4E1 if active cards use BNC
R-RJ48-8T1 if active cards use RJ-48-8T1
R-RJ48-8E1 if active cards use RJ-48-8E1
R-SNB-4E1 if active cards use SMB-8E1

Line Rate:

T1: 1.544 Mbps ±75 bps (50 ppm)
E1: 2.048 Mbps ± 100 bps (50 ppm)

Transmit Clocking:

Normal or Looped timed

Input Jitter Tolerance:

Per AT&T Accunet T1.5 Service 1990 - T1
Per G.703 - E1

Physical Layer Alarms:

Indicated in Service Modules

Physical Layer Performance Statistics:

N/A

Indicators:

Per Card:

Active (green), Failed (red), Standby (yellow)

BERT:

Active (green), Errors (yellow)

1 to N Redundancy:

Active (green)

Indicator for each T3:

Active (green)

Maintenance/Serviceability Features:

DS1 Loopback towards service modules
Hot pluggable

Reliability:

>85000 hous MTBF

Card Size:

Frontcard 7.25" x 16.25"
Backcard 7" x 4.5"

Power:

48VDC, 50 W

Loopback codes:

Fractional T1 in-band loopback -
ANSI T1/E1-2/92-003 R3

DS0 loopback -
TA-TSY-000055
TA-TSY-000057
TA-TSY-0000476

Monitoring trouble codes:

TA-TSY-000077
TA-TSY-0000280
ATT TR-62310

Line Interface connector:

DB15—when used with LM-DB15-4T1 line module

Line Rate:

1.544 Mbps ± 50 bps

Line Framing:

ESF per ATT TR 54016

Synchronization:

Transmitter may be either loop-timed to Receiver or synchronized to shelf (called normal mode)

Input Jitter Tolerance:

Per ATT TR 62411

Output Jitter Generation:

Per ATT TR 62411 using normal mode synchronization

Physical Layer Alarms:

LOS, OOF, AIS, RAI

Number of Frame Relay Ports:

1-Single frame relay stream occupying n consecutive time slots

Frame Relay Interface Rates:

Either 56 Kbps or n*64 Kbps; n as defined above

Frame Relay Interface:

Per ANSI T1.618, 2-octet header

Frame Relay Performance Counters (per Port; n x DS0):

Receive frames discarded due to Aborts
Receive frames discarded due to illegal header (EA bit)(s)
Receive frames discarded due to CRC errors (s)
Receive frames discarded due to alignment errors (s)
Receive frames discarded due to unknown DLCI (s)
Receive frames discarded due to illegal frame length (s)
Receive frames discarded due to DE threshold exceeded
Receive frames with DE already set
Receive frames with FECN already set
Receive frames with BECN already set
Receive frames tagged FECN
Receive frames (s)
Receive bytes (s)
Transmit frames discarded due to underrun
Transmit frames discarded due to Abort
Transmit frames discarded due to egress Q-depth exceeded (s)
Transmit bytes discarded due to egress Q-depth exceeded (s)
Transmit frames discarded due to egress DE threshold
exceeded Transmit frames (s)

Transmit bytes(s)
Transmit Frames with FECN set (s)
Transmit Frames with BECN set (s)

LMI receive status inquiry request count (s)
LMI transmit status inquiry request count
LMI invalid receive status count (s)
LMI signaling protocol (keep alive time-out count) (s)
LMI sequence number error count (s)
LMI receive status transmit count (in response to request)
LMI transmit status transmit count (in response to request)
Transmit frames during LMI alarm (s)
Transmit bytes during LMI alarm (s)
LMI update status transmit count (in response
to configuration changes)

Diagnostics (per port):

Last unknown DLCI received

ATM Layer:

Per CCITT I.361 and ATM UNI v3.1

AAL Layer:

AAL5 per Draft CCITT I.363

FR-Cell Interworking:

Per Draft CCITT I.555 and I.36x.1, as summarized in Frame Relay Forum, FR/ATM PVC Interworking Implementation Agreement FRF.5

Channels (Endpoints):

256 per card—may be allocated across any of the frame relay interfaces

Counters:

Service Counters:

Number of frames received (s)
Number of bytes received (s)
Number of frames received with DE already set (s)
Number of bytes received with DE already set (s)
Number of frames received with unknown DLCI
Number of frames received but discarded (s)
Number of received bytes discarded (s)
Number of received bytes discarded due to exceeded Q-depth (s)
Number of frames received and discarded due to: intershelf alarm
exceeded DE threshold (s)
exceeded Q depth (s)
Number of frames received with FECN set
Number of frames received with BECN set
Number of frames received tagged FECN
Number of frames received tagged BECN

Number of frames transmitted (s)
Number of bytes transmitted (s)

Number of frames transmitted with DE set (s)
Number of frames discarded due to reassembly errors (s)
Number of frames transmitted during LMI logical port alarm(s)
Number of frames transmitted with FECN set (s)
Number of frames transmitted with BECN set (s)
Number of transmit frames discarded (s)
Number of transmit bytes discarded
Number of transmit frames discarded due to: CRC error (s)
egress Q depth exceeded (s)
egress DE threshold exceeded source abort
physical link failure (T1)
ATM cells: Number of cells transmitted to BNM
Number of cells transmitted with CLP bit set
Number of OAM AIS cells transmitted (s)
Number of OAM FERF cells transmitted (s)
Number of BCM cells transmitted
Number of OAM end-end loopback cells transmitted (s)
Number of OAM segment loopback cells transmitted
Number of cells received from BNM
Number of cells received with CLP bit set
Number of OAM AIS cells received (s)
Number of OAM FERF cells received (s)
Number of BCM cells received
Number of OAM end-end loopback cells received (s)
Number of OAM segment loopback cells received
Number of OAM cells discarded due to CRC-10 error (s)

Statistics:

All of the above counters followed by an (s) can be configured as statistics

Diagnostics:

Last unknown LCN received Cells with unknown LCN count

Indicators:

Per Card:

Active (Green), Standby (Yellow), Fail (Red)

Lines (one per):

Active & Okay (Green)
Active & Local Alarm (Red)
Active & Remote Alarm (Yellow)

Maintenance/Serviceability Features:

Internal Problem Isolation Loopbacks Hot-pluggable

Reliability:

> 65000 hours MTBF

Card Size:

FRSM-4T1: 7.25" x 16.25"
LM-DB15-4T1: 7.0" x 4.5"
Power: -48V DC, 30W (4 T1s)

Line Interface connector:

DB15 when used with LM-DB15-4E1 line module.

BNC when used with LM-BNC-4E1 line module.

Line Rate:

2.048 Mbps ± 100 bps.

Synchronization:

Transmitter may be either loop-timed to Receiver or synchronized to shelf (called normal mode).

Input Jitter Tolerance:

Per G.703.

Output Jitter Generation:

Per G.703.

Physical Layer Alarms:

LOS, OOF, AIS, RAI.

Number of Frame Interfaces:

I to 31 occupying n where 1 < n < 31. Sum of all < 31 for CCS. 1-30 for CAS.

Frame Relay Interface Rates:

Either 56 Kbps or n*64 Kbps; n as defined above.

Frame Relay Interface:

Per ANSI T1.618, 2-octet header.

Frame Relay Performance Counters (per Port; n x DS0):

Receive frames discarded due to Aborts
Receive frames discarded due to illegal header (EA bit)(s)
Receive frames discarded due to CRC errors (s)
Receive frames discarded due to alignment errors (s)
Receive frames discarded due to unknown DLCI (s)
Receive frames discarded due to illegal frame length (s)
Receive frames discarded due to DE threshold exceeded
Receive frames with DE already set
Receive frames with FECN already set
Receive frames with BECN already set
Receive frames tagged FECN
Receive frames (s)
Receive bytes (s)

Transmit frames discarded due to underrun
Transmit frames discarded due to Abort
Transmit frames discarded due to egress Q-depth exceeded (s)
Transmit bytes discarded due to egress Q-depth exceeded (s)
Transmit frames discarded due to egress DE threshold exceeded Transmit frames (s)
Transmit bytes(s)
Transmit Frames with FECN set (s)
Transmit Frames with BECN set (s)
LMI receive status inquiry request count (s)
LMI transmit status inquiry request count
LMI invalid receive status count (s)
LMI signaling protocol (keep alive time-out count) (s)
LMI sequence number error count (s)
LMI receive status transmit count (in response to request)
LMI transmit status transmit count (in response to request)
Transmit frames during LMI alarm (s)
Transmit bytes during LMI alarm (s)
LMI update status transmit count (in response to configuration changes)

Diagnostics (per port):

Last unknown DLCI received

ATM Layer:

Per CCITT I.361 and ATM UNI v3.1

AAL Layer:

AAL5 per Draft CCITT I.363

FR-Cell Interworking:

Per Draft CCITT I.555 and I.36x.1, as summarized in "Frame Relay Forum, FR/ATM PVC Interworking Implementation Agreement FERF.5"

Channels (Endpoints):

256 per card—may be allocated across any of the frame relay interfaces

Counters:

Service Counters: Number of frames received (s)
Number of bytes received (s)
Number of frames received with DE already set (s)
Number of bytes received with DE already set (s)
Number of frames received with unknown DLCI
Number of frames received but discarded (s)
Number of received bytes discarded (s)
Number of received bytes discarded due to exceeded Q-Depth (s)
Number of frames received and discarded due to:
intershelf alarm
exceeded DE threshold (s)
exceeded Q depth (s)
Number of frames received with FECN set
Number of frames received with BECN set

Number of frames received tagged FECN
Number of frames received tagged BECN
Number of frames transmitted (s)
Number of bytes transmitted (s)
Number of frames transmitted with DE set (s)
Number of frames discarded due to reassembly errors (s)
Number of frames transmitted during LMI logical port alarm(s)
Number of frames transmitted with FECN set (s)
Number of frames transmitted with BECN set (s)
Number of transmit frames discarded (s)
Number of transmit bytes discarded
Number of transmit frames discarded due to: CRC error (s)
egress Q depth exceeded (s)
egress DE threshold exceeded source abort physical link failure (T1)

ATM cells: Number of cells transmitted to BNM
Number of cells transmitted with CLP bit set
Number of OAM AIS cells transmitted (s)
Number of OAM FERF cells transmitted (s)
Number of BCM cells transmitted
Number of OAM end-end loopback cells transmitted (s)
Number of OAM segment loopback cells transmitted
Number of cells received from BNM
Number of cells received with CLP bit set
Number of OAM AIS cells received (s)
Number of OAM FERF cells received (s)
Number of BCM cells received
Number of OAM end-end loopback cells received (s)
Number of OAM segment loopback cells received
Number of OAM cells discarded due to CRC-10 error (s)
Statistics: All of the above counters followed by an (s) can be configured as statistics.
Diagnostics:8Last unknown LCN received
Cells with unknown LCN count
Card General

Indicators:

Per Card: Active (Green), Standby (Yellow), Fail (Red)
Lines (one per): Active & Okay (Green),
Active & Local Alarm (Red),
Active & Remote Alarm (Yellow)

Maintenance/Serviceability Features:

Internal Problem Isolation Loopbacks
Hot-pluggable

Card Size:

FRSM-4E1: 7.25" x 16.25"
LM-DB15-4E1: 7.0" x 4.5"
LM-BNC-4E1: 7.0" x 4.5"

Power:

-48VDC, 30W (4 E1s)

Ingress:

8000 cell buffer shared between virtual channels/paths
Standard Usage Parameter Control (UPC)
Selective Cell Discard
Virtual Circuit Queuing
EFCI setting per VC

Egress:

8000 cell storage capacity shared between four ports
Up to 12 user selectable Egress Queues per port
Selective Cell Discard
EFCI setting per Queue

Line Interface connector:

RJ-48 when used with LM-RJ-48-8T1 line module

Line Rate:

1.544 Mbps ± 50 bps

Line Framing:

ESF per ATT TR 54016

Synchronization:

Transmitter may be either loop-timed to Receiver or synchronized to shelf (called normal mode)

Input Jitter Tolerance:

Per ATT TR 62411

Output Jitter Generation:

Per ATT TR 62411 using normal mode synchronization

Physical Layer Alarms:

LOS, OOF, AIS, RAI

Number of Frame Relay Ports:

1-Single frame relay stream occupying n consecutive time slots

Frame Relay Interface Rates:

Either 56 Kbps or n*64 Kbps; n as defined above

Frame Relay Interface:

Per ANSI T1.618, 2-octet header

Frame Relay Performance Counters (per Port; n x DS0):

Receive frames discarded due to Aborts
Receive frames discarded due to illegal header (EA bit)(s)
Receive frames discarded due to CRC errors (s)
Receive frames discarded due to alignment errors (s)
Receive frames discarded due to unknown DLCI (s)
Receive frames discarded due to illegal frame length (s)
Receive frames discarded due to DE threshold exceeded
Receive frames with DE already set
Receive frames with FECN already set
Receive frames with BECN already set
Receive frames tagged FECN
Receive frames (s)
Receive bytes (s)
Transmit frames discarded due to underrun
Transmit frames discarded due to Abort
Transmit frames discarded due to egress Q-depth exceeded (s)
Transmit bytes discarded due to egress Q-depth exceeded (s)
Transmit frames discarded due to egress DE threshold
exceeded Transmit frames (s)

Transmit bytes(s)
Transmit Frames with FECN set (s)
Transmit Frames with BECN set (s)

LMI receive status inquiry request count (s)
LMI transmit status inquiry request count
LMI invalid receive status count (s)
LMI signaling protocol (keep alive time-out count) (s)
LMI sequence number error count (s)
LMI receive status transmit count (in response to request)
LMI transmit status transmit count (in response to request)
Transmit frames during LMI alarm (s)
Transmit bytes during LMI alarm (s)
LMI update status transmit count (in response
to configuration changes)

Diagnostics (per port):

Last unknown DLCI received

ATM Layer:

Per CCITT I.361 and ATM UNI v3.1

AAL Layer:

AAL5 per Draft CCITT I.363

FR-Cell Interworking:

Per Draft CCITT I.555 and I.36x.1, as summarized in Frame Relay Forum, FR/ATM PVC Interworking Implementation Agreement FRF.5

Channels (Endpoints):

256 per card—may be allocated across any of the frame relay interfaces

Counters:

Service Counters:

Number of frames received (s)
Number of bytes received (s)
Number of frames received with DE already set (s)
Number of bytes received with DE already set (s)
Number of frames received with unknown DLCI
Number of frames received but discarded (s)
Number of received bytes discarded (s)
Number of received bytes discarded due to exceeded Q-depth (s)
Number of frames received and discarded due to: intershelf alarm
exceeded DE threshold (s)
exceeded Q depth (s)
Number of frames received with FECN set
Number of frames received with BECN set
Number of frames received tagged FECN
Number of frames received tagged BECN

Number of frames transmitted (s)
Number of bytes transmitted (s)

Number of frames transmitted with DE set (s)
Number of frames discarded due to reassembly errors (s)
Number of frames transmitted during LMI logical port alarm(s)
Number of frames transmitted with FECN set (s)
Number of frames transmitted with BECN set (s)
Number of transmit frames discarded (s)
Number of transmit bytes discarded
Number of transmit frames discarded due to: CRC error (s)
egress Q depth exceeded (s)
egress DE threshold exceeded source abort
physical link failure (T1)
ATM cells: Number of cells transmitted to BNM
Number of cells transmitted with CLP bit set
Number of OAM AIS cells transmitted (s)
Number of OAM FERF cells transmitted (s)
Number of BCM cells transmitted
Number of OAM end-end loopback cells transmitted (s)
Number of OAM segment loopback cells transmitted
Number of cells received from BNM
Number of cells received with CLP bit set
Number of OAM AIS cells received (s)
Number of OAM FERF cells received (s)
Number of BCM cells received
Number of OAM end-end loopback cells received (s)
Number of OAM segment loopback cells received
Number of OAM cells discarded due to CRC-10 error (s)

Statistics:

All of the above counters followed by an (s) can be configured as statistics

Diagnostics:

Last unknown LCN received Cells with unknown LCN count

Indicators:

Per Card:

Active (Green), Standby (Yellow), Fail (Red)

Lines (one per):

Active & Okay (Green)
Active & Local Alarm (Red)
Active & Remote Alarm (Yellow)

Maintenance/Serviceability Features:

Internal Problem Isolation Loopbacks Hot-pluggable

Reliability:

> 65000 hours MTBF

Card Size:

FRSM-8T1: 7.25" x 16.25"
LM-DB15-4T1: 7.0" x 4.5"
Power: -48V DC, 30W (8 T1s)

Line Interface connector:

RJ-48 when used with LM-RJ-48-8E1 line module.
SMB when used with LM-SMB-8E1 line module

Line Rate:

2.048 Mbps ± 100 bps

Synchronization:

Transmitter may be either loop-timed to Receiver or synchronized to shelf (called normal mode)

Input Jitter Tolerance:

Per G.703

Output Jitter Generation:

Per G.703

Physical Layer Alarms:

LOS, OOF, AIS, RAI

Number of Frame Interfaces:

I to 31 occupying n where 1 < n < 31. Sum of all < 31 for CCS 1-30 for CAS

Frame Relay Interface Rates:

Either 56 Kbps or n*64 Kbps; n as defined above

Frame Relay Interface:

Per ANSI T1.618, 2-octet header

Frame Relay Performance Counters (per Port; n x DS0):

Receive frames discarded due to Aborts
Receive frames discarded due to illegal header (EA bit)(s)
Receive frames discarded due to CRC errors (s)
Receive frames discarded due to alignment errors (s)
Receive frames discarded due to unknown DLCI (s)
Receive frames discarded due to illegal frame length (s)
Receive frames discarded due to DE threshold exceeded
Receive frames with DE already set
Receive frames with FECN already set
Receive frames with BECN already set
Receive frames tagged FECN
Receive frames (s)
Receive bytes (s)

Transmit frames discarded due to underrun
Transmit frames discarded due to Abort
Transmit frames discarded due to egress Q-depth exceeded (s)
Transmit bytes discarded due to egress Q-depth exceeded (s)
Transmit frames discarded due to egress DE threshold exceeded Transmit frames (s)
Transmit bytes(s)
Transmit Frames with FECN set (s)
Transmit Frames with BECN set (s)
LMI receive status inquiry request count (s)
LMI transmit status inquiry request count
LMI invalid receive status count (s)
LMI signaling protocol (keep alive time-out count) (s)
LMI sequence number error count (s)
LMI receive status transmit count (in response to request)
LMI transmit status transmit count (in response to request)
Transmit frames during LMI alarm (s)
Transmit bytes during LMI alarm (s)
LMI update status transmit count (in response to configuration changes)

Diagnostics (per port):

Last unknown DLCI received

ATM Layer:

Per CCITT I.361 and ATM UNI v3.1

AAL Layer:

AAL5 per Draft CCITT I.363

FR-Cell Interworking:

Per Draft CCITT I.555 and I.36x.1, as summarized in "Frame Relay Forum, FR/ATM PVC Interworking Implementation Agreement FERF.5"

Channels (Endpoints):

256 per card—may be allocated across any of the frame relay interfaces

Counters:

Service Counters: Number of frames received (s)
Number of bytes received (s)
Number of frames received with DE already set (s)
Number of bytes received with DE already set (s)
Number of frames received with unknown DLCI
Number of frames received but discarded (s)
Number of received bytes discarded (s)
Number of received bytes discarded due to exceeded Q-Depth (s)
Number of frames received and discarded due to:
intershelf alarm
exceeded DE threshold (s)
exceeded Q depth (s)
Number of frames received with FECN set
Number of frames received with BECN set

Number of frames received tagged FECN
Number of frames received tagged BECN
Number of frames transmitted (s)
Number of bytes transmitted (s)
Number of frames transmitted with DE set (s)
Number of frames discarded due to reassembly errors (s)
Number of frames transmitted during LMI logical port alarm(s)
Number of frames transmitted with FECN set (s)
Number of frames transmitted with BECN set (s)
Number of transmit frames discarded (s)
Number of transmit bytes discarded
Number of transmit frames discarded due to: CRC error (s)
egress Q depth exceeded (s)
egress DE threshold exceeded source abort physical link failure (T1)

ATM cells: Number of cells transmitted to BNM
Number of cells transmitted with CLP bit set
Number of OAM AIS cells transmitted (s)
Number of OAM FERF cells transmitted (s)
Number of BCM cells transmitted
Number of OAM end-end loopback cells transmitted (s)
Number of OAM segment loopback cells transmitted
Number of cells received from BNM
Number of cells received with CLP bit set
Number of OAM AIS cells received (s)
Number of OAM FERF cells received (s)
Number of BCM cells received
Number of OAM end-end loopback cells received (s)
Number of OAM segment loopback cells received
Number of OAM cells discarded due to CRC-10 error (s)
Statistics: All of the above counters followed by an (s) can be configured as statistics.
Diagnostics: 8Last unknown LCN received
Cells with unknown LCN count
Card General

Indicators:

Per Card: Active (Green), Standby (Yellow), Fail (Red)
Lines (one per):Active & Okay (Green)
Active & Local Alarm (Red),
Active & Remote Alarm (Yellow)

Maintenance/Serviceability Features:

Internal Problem Isolation Loopbacks
Hot-pluggable

Card Size:

FRSM-8E1: 7.25" x 16.25"
RJ48-8E1: 7.0" x 4.5"
SMB-8E1: 7.0" x 4.5"

Power:

-48V DC, 30W (8 E1s)

Ingress:

8000 cell buffer shared between virtual channels/paths
Standard Usage Parameter Control (UPC)
Selective Cell Discard
Virtual Circuit Queuing
EFCI setting per VC

Egress:

8000 cell storage capacity shared between four ports
Up to 12 user selectable Egress Queues per port
Selective Cell Discard
EFCI setting per Queue

Line Interface Connector:

Miniature 15 pin female DB-15 (100

)—(Use LM-DB15-4T1)

Line Rate:

1.544 Mbps ± 50 bps (T1)

Synchronization:

Transmitter may be either loop-timed or Receiver or synchronized to shelf (called normal mode)

Line Code:

Bipolar 8 Zero Substitution (B8ZS) as specified in ANSI T1.408 (T1)

Line Framing:

Extended Superframe Format (ESF 24 frame multiframe) as ANSI T1.408

ESF Maintenance Functions:

Bit-oriented alarm and loopback messages of ESF Data Link as per ANSI T1.408

Input Jitter Tolerance:

Per ATT TR 62411

Output Jitter Generation:

Per ATT TR 62411 using normal mode synchronization.

Physical Layer Alarms:

LOS, OOF, AIS, RAI

Physical Layer Performance Stats:

LCV, LES, LSES, CV, ES, SES, SEFS, AISS, UAS

Line Interface Connector:

Miniature 15 pin female DB-15 (120

)—(Use LM-DB15-4E1), BNC (75

)—(Use LM-BNC-4E1)

Line Rate:

2.048 Mbps ± 100 bps (E1)

Synchronization:

Transmitter may be either loop-timed or Receiver or synchronized to shelf (called normal mode)

Line Code:

HDB3 (E1)

Line Framing:

16 frame Multiframe as in G.704

Input Jitter Tolerance:

As specified in ITU G.823 for 2.048 Mbit/s

Output Jitter Generation:

As specified in ITU G.823 for 2.048 Mbit/s

Physical Layer Alarms:

LOS, OOF, AIS, RAI

Physical Layer Performance Stats:

LCV, LES, LSES, CV, ES, SES, SEFS, AISS, UAS

ATM UNI v3.1, ITU-T G.804, per CCITT I.361.

Channel Configuration:

256 per card. May be allocated across any of the T1 (E1) ports.

VPI/VCI:

VPI: 0-255.
VCI: 0-4096.

Traffic Classes:

CBR, VBR, VBR+.

UPC Parameters:

PCR, SCR (VBR), CCDV (CBR).

Congestion Control Support:

ForeSight (towards Network for VBR+).

ForeSight Parameters:

MIR, PIR, Rate Up, Rate Down, QIR, QIR Timeout, IBS.

Counters:

Per Port:

Number of cells received from the interface.
Number of cells received with unknown VPI/VCI.
Last known VPI/VCI received from the port.
Number of cells discarded due to error in Cell Header.
Number of cells received with non zero GRC field.
Number of cells transmitted to the interface.
Number of cells transmitted for which EFCI was set.
Number of egress cells discarded due to service interface physical alarm.

Endpoint (channel):

Ingress:

Number of cells received from port.
Number of cells received from the port with CLP = 1.
Number of cells received from the port with EFCI = 1.
No, of cells from the port discarded due to queue exceeded QDepth.
Number of cells (with CLP) set) discarded due to queue exceeded CLP threshold.
Number of cells from the port for which CLP was set due to UPC violations.

ATMizer channel counters:

Ingress:

Number of cells transmitted to CellBus.
Number of cells to cell bus for which EFCI was set.
Number of cells to cell bus discarded due to shelf alarm.

Egress:

Number of cells received from the CellBus.
Number of cells discarded due to queue exceeded QDepth
(per Egress Q).
Number of cells discarded due to queue exceeded CLP threshold (per Egress Q).
Number of cells received with CLP = 1.

Other Counters:

.

Ingress:

Number of OAM cells discarded.
Number of AIS cells received from the port.
Number of RDI (FERF) cells received from the port.
Number SegmentLpBk cells received from the port.
Number of SegmentLpBk cells transmitted to CellBus.

Egress:

Number of OAM cells discarded.
Number of AIS cells transmitted to the port.
Number of SegmentLpBk cells transmitted to the port.
Number of SegmentLpBk cells received from the port.

Diagnostic Stats:

Peak Queue Depth (Ingress: per channel).

Indicators:

Per Card:

Active (green), Standby (yellow), Fail (red)

Per Line:

One per line: Active & OK (green)
Active and Local Alarm (red)
Active and Remote Alarm (yellow)

Maintenance/Servicability:

Facility loopback via Loop up/down per ANSI T1.408 &
ATT TR 62411 (T1), CCITT G.7xx (E1)
Facility Loopback via Management Console
Internal Problem Isolation Loopbacks
Hot pluggable

Card Size:

7.25" x 15"

Power:

-48VDC, 30 W

Safety:

EN 60950 2nd edition (including EN 41003) UL 1950
2nd edition

Compliance:

T1: Accunet 62411 E1: G.703, G.823

ESD:

IEC 1000-4-2

Synchronization:

Transmitter is synchronized to the shelf (Stratum traceable)

Line Framing:

None

Channel Configuration:

Number of CBR Interfaces:

4

Cell Delay Variation (CDV):

Configurable by setting reassembly buffer depth to a maximum of 250 msec. CDV = 1/2 buffer depth

Channels (Endpoints):

One per physical port

Counters:

MIB Name

AAL1:

Number of lost SAR-PDUs
Number of buffer overflow events
Number of buffer underflow events
Number of SAR-PDU's with header error
Number of SAR-PDU's received out of sequence
Number of cells played out to T1/E1 port
Number of cell generated from T1/E1 port
Number of bytes discarded due to shelf alarm,from port
Number of all 1's cells inserted during buffer underflow
Number of bytes discarded due to egress overflow

cesLostCells
cesBufOverflows
cesBufUnderflows
cesHdrErrs
cesCellSeqMismatchCnt
cesReassCells
cesGenCells
cesIngrDiscardedBytes

cesUflowInsCells

cesOflowDropBytes

Diagnostic:

Egress buffer depth (per port)

Alarms:

MIB Name

T1/E1 Port:

Red, Loss of Signal (LOS)

Blue, Alarm Indication Signal (AIS)

LineAlarmState—bit 5 set

LineAlarmState—bit 2, set and cesChanState = 3

Line Code Violation (LVC)

LineStatisticalAlarmState

SAR Port:

Transmit state:

SendingAIS

Sending FERF

cesXmtATMState = 3

cesXmtATMState = 4

Receiving state:

Receiving AIS

Receiving FERF

Cell Loss

cevATMstate = 3

cevATMstate = 4

cesCellLossStatus = 2

T1 Line Interface connector:

Miniature RJ-48C, 100 ohms balanced

T3 Line Interface connector:

BNC, 75 ohms unbalanced

Physical Interface (E3.E1) RJ48-E3E1-LM:

E1 Line Interface connector:

Miniature RJ-48C, 100 ohms balanced

E3 Line Interface connector:

BNC, 75 ohms unbalanced

Physical Interface (E3.E1B) SMB-E3E1-LM:

E1 Line Interface connector:

Miniature SMB, 75 ohms unbalanced

E3 Line Interface connector:

Miniature SMB, 75 ohms unbalanced

Line rate:

1.544Mbps +/- 50 bps.

IMATM Synchronization:

Digital PLL to synchronize all transmitters to one of the following: the T3 line, any of the T1 lines, or the MGX 8220 shelf 8KHz clock.

Line Code:

Bipolar 8 zero substitution (B8ZS) as specified in
ANSI T1.408.

Line Framing:

Extended Superframe Format (ESF 24 frame multifrm) as in ANSI T1.408.

Input Jitter Tolerance:

Per ATT TR 62411.

Output Jitter Generation:

Using normal mode synchronization per ATT TR 62411.

Physical Layer Alarms:

LOS, OOF, AIS, RDI.

Physical Layer Performance Parms:

LCV, LES, LSES, CV, ES, SES, SEFS, AISS, UAS.

Line rate:

2.048Mbps +/- 100 bps.

IMATM Synchronization:

Digital PLL to synchronize all transmitters to one of the following: the E3 line, any of the E1 lines, or the MGX 8220 shelf 8KHz clock.

Line Code:

HDB3 (E1).

Line Framing:

16 frame Multiframe as in G.704.

ESF Maintenance Functions:

None.

Input Jitter Tolerance:

As specified in ITU G.823 for 2.048 Mbits/s.

Output Jitter Generation:

As specified in ITU G.823 for 2.048 Mbits/s.

Physical Layer Alarms:

LOS, OOF, AIS, RDI.

Physical Layer Performance Parms:

LCV, LES, LSES, CV, ES, SES, SEFS, AISS, UAS.

Line Rate:

44.736 Mbps ±20 ppm (T3)

Line Code:

B3ZS for DS3

Framing:

Physical Layer Conversion Procedure for DS3 to
ANSI TA-TSY-000772 and TA-TSY-000773

Input Compliance:

Per ATT 54014 and CCITT G.703

Line Rate:

34.368 Mbps ±20 ppm (T3).

Line Code:

HDB3 for E3.

Framing:

Per ITU-T Recommendation G.804 and G.832.

Input Jitter Tolerance:

Per ATT TR 62411.

ATM Interface:

Cell support (type)

STI cells.

Congestion Control:

EFCI/FFCI setting on Egress (AIM).

EFCI setup:

Via programmable EFCI threshold.

IMATM Alarms:

IMATM complies with DS3 and G.832 physical layer protocols. Supports FERF, LOS, LOF, OOF, AIS, yellow and red alarms.

Counters:

High Speed Port:

DS3/E3 physical layer line alarm indication and insertion
DS3/E3 SUNI-PDh number of cells:Tx and Rx
PLL clock recovery status

AIM Group:

Number of cells received from AIM interface
Number of cell discarded due to error in Cell Header
Number of cells from AIM interface discarded due to Queue Full on both Ingress and Egress directions
Number of ACP cells received
Number of ACP cells received with errors
Number of LCP cells received
Number of LCP cells received with errors

Number of cells served from Egress queue to AIM interface
Number of cell transmitted by trunk interface, two types: Date and Filler + Data
Number of times a link went off the IMAIM group

ATMizer (Cellbus) counters:

Ingress:

Numberof cells transmitted
Number of cells discarded due to shelf alarm

Egress:

Number of cells received
Numberof cells discarded due to queue depth exceeded QDepth

Indicators:

Per Card:

Active (Green), Standby (Yellow), Fail (Red)

Lines (one per):

Active and OK (Green)
Active and Local Alarm (Red)
Active and Remote Alarm (Yellow)

Maintenance/Serviceability Features:

Internal Problem Isolation Loopbacks
Hot-pluggable

Card Size:

IMATM front card: 7.25" x 16.25"
RJ48-T3T1-LM: 7.0" x 4.5"
RJ48-E3E1-LM: 7.0" x 4.5"
SMB-E3E1-LM: 7.0" x 4.5"

Power:

-48V DC