Cisco 3825 Hardware Installation Guide - Page 184

ATM OC-3 Network Modules Chapter 11 Connecting ATM Network Modules Figure 11-14 ATM OC-3/STM-1 Circuit Emulation Service Network Module LEDs ATM 1A-OC3 MM-1V CES TX VO FERF OOF AIS ATM 0 RX RCLK EN 26912 CES LED FERF LED OOF LED AIS LED RCLK LED Enable LED Table 11-4 ATM OC-3 Network Module LEDs LED Color EN Green RCLK FERF OOF AIS CES Green Yellow Yellow Yellow Green Meaning Module has passed its self-tests and is available to the router. Receive clock has been detected. Far-end receive failure. Out of frame. Alarm indication signal. An active CES connection is established (ATM OC-3/STM-1 circuit emulation service network module only). Hardware Compatibility with Cisco 3620 Routers Cisco 3620 routers require a minimum PCMCIA controller revision level to recognize ATM OC-3 network modules; otherwise, an error message appears. Cisco 3620 routers installed in the field before April 1999 contain a Revision C PCMCIA controller, which is not compatible with these modules. Starting in April 1999, all Cisco 3620 routers shipped from the factory include Revision E PCMCIA controllers, which are fully compatible with all three ATM OC-3 network modules. You can identify the version of PCMCIA controller in your Cisco 3620 router by entering the show pci hardware command in privileged EXEC mode, or by examining the part number on the motherboard. Supported versions are shown in Table 11-5. Table 11-5 Cisco 3620 Router Versions for ATM OC-3 Network Modules PCMCIA controller Motherboard Does Not Support ATM OC-3 0x22, 0xE2 73-1850-10 and older Supports ATM OC-3 0x20, 0xE0 73-1850-11 or newer The output of the show pci hardware command looks similar to this: Router# show pci hardware 11-8 Cisco Network Modules Hardware Installation Guide OL-2485-20