Cisco 3825 Hardware Installation Guide - Page 163

Chapter 9 Connecting Digital Modem Network Modules Adding 6-Port MICA Modules to a Digital Modem Network Module Removing the Digital Modem Network Module Caution Digital modem network modules do not currently support online insertion and removal (hot swap) of network modules. To avoid damaging the module, you must turn off electrical power and disconnect network cables before you remove it from the chassis slot. To remove a digital modem network module, follow these steps: Step 1 Turn off electrical power to the router. However, to channel ESD voltages to ground, do not unplug the power cable. Remove all network interface cables, including telephone cables, from the rear panel. The following warning applies to routers that use a DC power supply: Warning Before performing any of the following procedures, ensure that power is removed from the DC circuit. To ensure that all power is OFF, locate the circuit breaker on the panel board that services the DC circuit, switch the circuit breaker to the OFF position, and tape the switch handle of the circuit breaker in the OFF position. Statement 7 Step 2 Step 3 Step 4 Loosen the modules captive mounting screws, using a Phillips or flat-blade screwdriver. Hold the captive screws between two fingers, and pull the network module toward you until it slides free of the chassis. (See Figure 9-3.) Set the network module on an ESD-preventive mat. Figure 9-3 Removing a Digital Modem Network Module from a Router cT1 PRI 3 ETHERNET 4E 1 CTRLR 0 ETH 3 ETH 2 ETH 1 321 0 LINK ACT DIGITAL MODEMS EN ETH 0 MICA 2E 2W W1 BANK 0 MICA BANK 1 STP EN ETHERNET 1 MICA BANK 2 MICA BANK 3 MICA BANK 4 EN ETHERNET 0 2 SERIAL AUI EN INPUT 100-240VAC 50/60HZ 3.0-1.5 AMPS REMOTE ALARM LOCAL ALARM LOOPBACK CARRIER DETECT ACT LNK ACT ACT LNK ACT H11202 OL-2485-20 Cisco Network Modules Hardware Installation Guide 9-5