Pinouts
The following sections describe the pinouts for the device interfaces:
BITS Port Pinouts
The following table summarizes the BITS port pinouts.
|
Pin |
Signal Name |
Direction |
Description |
|---|---|---|---|
|
1 |
RX Ring |
Input |
Receive Ring |
|
2 |
RX Tip |
Input |
Receive Tip |
|
3 |
— |
— |
Not used |
|
4 |
TX Ring |
Output |
TX Ring |
|
5 |
TX Tip |
Output |
TX Tip |
|
6 |
— |
— |
Not used |
|
7 |
— |
— |
Not used |
|
8 |
— |
— |
Not used |
Time-of-Day Port Pinouts
The following table summarizes the ToD/1-PPS port pinouts.
|
Pin |
Signal Name |
Direction |
Description |
|---|---|---|---|
|
1 |
RESERVED |
Output |
Do Not Connect |
|
2 |
RESERVED |
Input |
Do Not Connect |
|
3 |
1PPS_N |
Output or Input |
1PPS RS422 signal |
|
4 |
GND |
— |
— |
|
5 |
GND |
— |
— |
|
6 |
1PPS_P |
Output or Input |
1PPS RS422 signal |
|
7 |
TOD_N |
Output or Input |
Time-of-Day character |
|
8 |
TOD_P |
Output or Input |
Time-of-Day character |
Alarm Port Pinouts
The following table summarizes the external alarm input pinouts.
|
Pin |
Signal Name |
Description |
|---|---|---|
|
1 |
ALARM0_IN |
Alarm input 0 |
|
2 |
ALARM1_IN |
Alarm input 1 |
|
3 |
— |
No connect |
|
4 |
ALARM2_IN |
Alarm input 2 |
|
5 |
ALARM3_IN |
Alarm input 3 |
|
6 |
— |
No connect |
|
7 |
— |
No connect |
|
8 |
COMMON |
Alarm common |
Management Ethernet Port Pinouts
The following table summarizes the Management Ethernet port pinouts.
|
Pin |
Signal Name |
|---|---|
|
1 |
TRP0+ |
|
2 |
TRP0- |
|
3 |
TRP1+ |
|
4 |
TRP2+ |
|
5 |
TRP2- |
|
6 |
TRP1- |
|
7 |
TRP3+ |
|
8 |
TRP3- |
USB Console Port Pinouts
The table below summarizes the USB console port pinouts.
|
Pin |
Signal Name |
Description |
|---|---|---|
|
A1 |
Vcc |
+5VDC |
|
A2 |
D- |
Data - |
|
A3 |
D+ |
Data + |
|
A4 |
Gnd |
Ground |
 Note |
The USB console port +5VDC is input, and operates as an USB peripheral device. |
USB Flash or MEM Port Pinouts
The table below summarizes the USB flash or MEM port pinouts.
|
Pin |
Signal Name |
Description |
|---|---|---|
|
A1 |
Vcc |
+5VDC (500mA) |
|
A2 |
D- |
Data - |
|
A3 |
D+ |
Data + |
|
A4 |
Gnd |
Ground |
Note |
USB TYPE-A receptacle is used. |
Note |
The USB flash or MEM port +5VDC is output. Cisco ASR 920 Series Aggregation Services Router provides power for USB flash or MEM port. This port operates as a USB host device. |
Check Optical Fiber Specifications
Optical fiber transmission defines two types of fiber specification:
-
Single mode with three transmission types: short reach, intermediate reach, and long reach.
-
Multimode with only short reach.
Check Alarm Conditions
The following table summarizes the meaning of alarm conditions on the device.
|
Alarm Type |
Alarm Meaning |
|---|---|
|
Critical |
Port in down state. Environmental sensor threshold exceeded critical level (voltage, temperature). |
|
Major |
Environmental sensor threshold exceeded major level (voltage, temperature). |
|
Info |
Port is administratively shut down. |
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