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Installing ONS 15454 SDH E1-N-14 Cards
Verify Successful Turn Up of the E1-N-14 Card
Reset an Electrical Card (E1-N-14, DS3iN-12, or E3-12)
Replace an In-Service Electrical Card (E1-N-14, DS3iN-12, or E3-12)
Obtaining Technical Assistance
Installing ONS 15454 SDH E1-N-14 Cards
Product Name: 15454E-E1N-14=
This document contains a description of E1-N-14 card features, installation procedures, removal instructions, and technical specifications. Use this document in conjunction with the Cisco ONS 15454 SDH Installation and Operations Guide and the Cisco ONS 15454 SDH Troubleshooting and Reference Guide when working with E1-N-14 cards.
This document contains the following sections:
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"E1-N-14 Specifications" section
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This document contains the following procedures:
"Installation Procedures" procedure
"Verify Successful Turn Up of the E1-N-14 Card" procedure
"Removal Procedures" procedure
"Reset an Electrical Card (E1-N-14, DS3iN-12, or E3-12)" procedure
Note
E1-N-14 Card
The fourteen-port ONS 15454 SDH E1-N-14 card provides fourteen ITU-compliant, G.703 E-1 ports. Each port of the E1-N-14 card operates at 2.048 MBits/s (Mbps) over a 120 ohms twisted-pair copper cable (with FMEC-DS1/E1) or over a 75 ohms unbalanced coaxial cable (with FMEC-E1). Figure 1 shows the E1-N-14 faceplate and Figure 2 shows a block diagram of the card.
Figure 1 E1-N-14 faceplate
Each E1-N-14 port features ITU-T G.703 compliant level outputs and inputs supporting cable losses of up to 6 dB @ 1024 kHz.
The E1-N-14 card supports 1:N (N £ 4) protection. You can also provision the E1-N-14 to monitor line and frame errors in both directions.
The E1-N-14 card can function as a working or protect card in 1:1 or 1:N protection schemes. If you use the E1-N-14 as a standard E-1 card in a 1:1 protection group, you can install the E1-N-14 card in any multispeed or high-speed card slot on the ONS 15454 SDH. If you use the card's 1:N functionality, you must install an E1-N-14 card in Slot 3 (for bank A) or Sot 15 (for bank B).
You can group and map E1-N-14 card traffic in VC-12 as per ITU-T G.707 to any other card in an ONS 15454 SDH node. For performance-monitoring purposes, you can gather bidirectional E-1 frame-level information (loss of frame, parity errors or CRC errors, for example).
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E1-N-14 Card-Level Indicators
The E1-N-14 card faceplate has three LEDs.
E1-N-14 Port-Level Indicators
You can obtain the status of the fourteen E-1 ports using the LCD screen on the ONS 15454 SDH fan tray assembly. Use the LCD to view the status of any port or card slot; the screen displays the number and severity of alarms for a given port or slot. Refer to Chapter 1, "Alarm Troubleshooting," of the "Cisco ONS 15454 SDH Troubleshooting and Maintenance Guide, R3.3" for a complete description of the alarm messages.
Figure 2 E1-N-14 block diagram
E1-N-14 Specifications
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ONS15454 SDH cards, when installed in a system, comply with these standards:–
Installation Procedures
Use this section if you are installing or removing the E1-N-14 card for the first time. After you become familiar with ONS 15454 SDH card installation and boot up, use this section as a reference.
Caution
Caution
Step 1
Step 2
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Figure 3 Installing cards in an ONS 15454 SDH
Card Turn Up
Follow the steps in this section to verify card turn up. If one or more of the Cisco Transport Controller (CTC) software screen conditions according to "Verify Successful Turn Up of the E1-N-14 Card" section are not met, re-install the card. Replace the unit if the faulty state persists.
Verify Successful Turn Up of the E1-N-14 Card
Step 1
Step 2
Step 3
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Step 5
Removal Procedures
Use this section if you are installing or removing the E1-N-14 card for the first time. After you become familiar with ONS 15454 SDH card installation and boot up, use this section as a reference.
Caution
Caution
Note
Reset an Electrical Card (E1-N-14, DS3iN-12, or E3-12)
Note
The cards should be replaced when the red FAIL LED appears.
Take these precautions before performing an electical card reset to avoid causing a linear 1:1, 1:N or MSSPRing protection switch:
Step 1
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Step 3
<------East [Node A] West------East [Node B] West------East [Node C] West------>
In a 1:1 protection scheme, place a lockout on the protect card and verify that traffic is traveling over the working span before setting the lockout.
Replace an In-Service Electrical Card (E1-N-14, DS3iN-12, or E3-12)
Step 1
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Related Documentation
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Obtaining Documentation
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Obtaining Technical Assistance
Cisco provides Cisco.com as a starting point for all technical assistance. Customers and partners can obtain documentation, troubleshooting tips, and sample configurations from online tools by using the Cisco Technical Assistance Center (TAC) Web Site. Cisco.com registered users have complete access to the technical support resources on the Cisco TAC Web Site.
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If you have Internet access, it is recommended that you open P3 and P4 cases through the Cisco TAC Web Site.
Cisco TAC Escalation Center
The Cisco TAC Escalation Center addresses issues that are classified as priority level 1 or priority level 2; these classifications are assigned when severe network degradation significantly impacts business operations. When you contact the TAC Escalation Center with a P1 or P2 problem, a Cisco TAC engineer will automatically open a case.
To obtain a directory of toll-free Cisco TAC telephone numbers for your country, go to the following URL:
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Before calling, please check with your network operations center to determine the level of Cisco support services to which your company is entitled; for example, SMARTnet, SMARTnet Onsite, or Network Supported Accounts (NSA). In addition, please have available your service agreement number and your product serial number.
This document is to be used in conjunction with the documents listed in the "Related Documentation" section.
Copyright © 2002, Cisco Systems, Inc.
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