Table of Contents
This document provides information that you should know before and during the installation of the Cisco 1-, 2-, and 4-port Network Interface Modules (Cisco 1-, 2-, and 4-port Serial NIMs) in the Cisco 4400 Series Integrated Services Routers (ISRs). This document contains the following sections:
The Cisco 1-, 2-, and 4-port Serial NIMs are multi-protocol synchronous serial network interface modules (NIMs) supported on the Cisco 4400 Series ISRs. The Cisco 1-port, 2-port, and 4-port Serial NIMs expand the capabilities of the router to provide connectivity for synchronous interfaces in a wide range of applications including up to 8Mbps date rate for high speed high-level data link control (HDLC). These capabilities can be utilized as Point-to-Point Cisco HDLC WAN interface or frame relay interface. The Cisco 1-, 2-, and 4-port Serial NIMs have their own serial communication controllers (SCC) and they do not rely on the host router for SCCs.
Table 1 lists the Cisco 1-, 2-, and 4-port Serial NIMs SKUs.
The Cisco 1-, 2-, and 4-Port Serial Network Interface Modules for Cisco 4400 Series ISRs family consists of 3 compact serial NIM SKUs in single-wide NIM form factor. Figure 1 shows the front panel of the 1-port serial NIM, Figure 2 shows the front panel of the 2-port serial NIM, and Figure 3 show the front panel of the 4-port serial NIM, respectively. The LEDs for each port can be located at the bottom of the port. The EN and COMM LEDs are a bi-color LEDs. The LEDs are described in
Figure 4 shows the exploded view of the Cisco 1-, 2-, and 4-Port Serial Network Interface Modules for Cisco 4400 Series ISRs
The LEDs for each port are located on the front panel and are described in Table 1 .
- Safety Recommendations
- Preventing Electrostatic Discharge Damage
- General Maintenance Guidelines
- Safety Warnings
- Keep tools away from walk areas where you or others could fall over them.
- Do not wear loose clothing around the router. Fasten your tie or scarf and roll up your sleeves to prevent clothing from being caught in the chassis.
- Wear safety glasses when working under any conditions that might be hazardous to your eyes.
- Locate the emergency power-off switch in the room before you start working. If an electrical accident occurs, shut the power off.
- Before working on the router, turn off the power and unplug the power cord.
- Disconnect all power sources before doing the following:
- Do not work alone if potentially hazardous conditions exist.
- Always check that power is disconnected from a circuit.
- Remove possible hazards from your work area, such as damp floors, ungrounded power extension cables, or missing safety grounds.
- If an electrical accident occurs, proceed as follows:
Electrostatic discharge can damage equipment and electrical circuitry. Electrostatic discharge occurs when electronic printed circuit cards, such as those used in Installing the Cisco Multiprotocol Synchronus Serial NIM, are improperly handled and can result in complete or intermittent equipment failure. Always observe the following electrostatic discharge damage (ESD) prevention procedures when installing, removing, or replacing any electronic printed circuit cards:
- Make sure that the router chassis is electrically connected to earth ground.
- Wear an ESD-preventive wrist strap, and make sure that it makes good contact with your skin.
- Connect the wrist strap clip to an unpainted portion of the chassis frame to channel unwanted ESD voltages to ground.
Caution The wrist strap and clip must be used correctly to ensure proper ESD protection. Periodically confirm that the resistance value of the ESD-preventive wrist strap is between 1 and 10 megohms (Mohm).
- Keep the router chassis area clear and dust-free during and after installation.
- If you remove the chassis cover for any reason, store it in a safe place.
- Do not perform any action that creates a hazard to people or makes equipment unsafe.
- Keep walk areas clear to prevent falls or damage to equipment.
- Follow installation and maintenance procedures as documented by Cisco Systems, Inc.
The following safety warning statements apply to all hardware procedures involving the Cisco 1-, 2-, and 4-Port Serial Network Interface Modules for Cisco 4400 Series ISRs for Cisco 4400 Series ISRs. Translations of these warnings are available in the Cisco Network Modules and Interface Cards Regulatory Compliance and Safety Information document, which ships with all individual Cisco 1-, 2-, and 4-Port Serial Network Interface Modules for Cisco 4400 Series ISRs orders, and is also available on Cisco.com.
Warning IMPORTANT SAFETY INSTRUCTIONS
This warning symbol means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents. Use the statement number provided at the end of each warning to locate its translation in the translated safety warnings that accompanied this device. Statement 1071
SAVE THESE INSTRUCTIONS
Warning Before working on equipment that is connected to power lines, remove jewelry (including rings, necklaces, and watches). Metal objects will heat up when connected to power and ground and can cause serious burns or weld the metal object to the terminals. Statement 43
Warning Because invisible laser radiation may be emitted from the aperture of the port when no fiber cable is connected, avoid exposure to laser radiation and do not stare into open apertures. Statement 125
Warning To avoid electric shock, do not connect safety extra-low voltage (SELV) circuits to telephone-network voltage (TNV) circuits. LAN ports contain SELV circuits, and WAN ports contain TNV circuits. Both LAN and WAN ports may use RJ-45 connectors. Use caution when connecting cables. Statement 1021
Warning Hazardous network voltages are present in WAN ports regardless of whether power to the router is OFF or ON. To avoid electric shock, use caution when working near WAN ports. When detaching cables, detach the end away from the router first. Statement 1026
- Tools and Equipment Required During Installation
- Installing the Cisco 1-, 2-, and 4-port Serial NIMs in the Cisco 4400 Series ISRs
- Removing the Cisco 1-, 2-, and 4-port Serial NIMs from the Cisco 4400 Series ISRs
- Connecting the Cisco 1-, 2-, and 4-port Serial NIMs to a Network
Step 1 Shut down the electrical power to the slot in the router either by turning off the electrical power to the router or by issuing the online insertion and removal (OIR) commands. Leave the power cable plugged in to channel ESD voltages to ground. For more information on OIR, see the “Managing Cisco Enhanced Services and Network Interface Modules” chapter in the Software Configuration Guide for the Cisco 4400 Series Integrated Services Routers.
Warning To comply with the Telcordia GR-1089 NEBS standard for electromagnetic compatibility and safety, connect the Cisco 1-, 2-, and 4-Port Serial Network Interface Modules for Cisco 4400 Series ISRs only to intra-building or unexposed wiring or cable. The intra-building port(s) of the equipment or subassembly must not be metallically connected to interfaces that connect to the OSP or its wiring. These interfaces are designed for use as intra-building interfaces only (Type 2 or Type 4 ports as described in GR-1089-CORE, Issue 4) and require isolation from the exposed OSP cabling. The addition of Primary Protectors is not sufficient protection in order to connect these interfaces metallically to OSP wiring. The intrabuilding cable must be shielded and the shield must be grounded at both ends.
Step 1 Shut down the electrical power to the slot in the router either by turning off the electrical power to the router or by issuing the online insertion and removal (OIR) commands. Leave the power cable plugged in to channel ESD voltages to ground. For more information on OIR, see the “Managing Cisco Enhanced Services and Network Interface Modules” chapter in the Software Configuration Guide for the Cisco 4451-X Integrated Services Router.
Step 2 Connect the female end of the serial cable to the male end of the other serial connector for back-to-back connectivity. (See Figure 5)
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