Cisco 12000 Series Hardware Installation Manual page 9

8-Port Channelized T1/E1 SPA LEDs
Table 2-7
A/L
8-Port Channelized T1/E1 SPA Interface Specifications
The E1 interface on the 8-Port Channelized T1/E1 SPA uses RJ-48c receptacles for E1 (120-Ohm) cables
with RJ-45 connectors. You can use all ports simultaneously. Each E1 connection supports interfaces that
meet G.703 standards. The RJ-45 connection does not require an external transceiver. The E1 ports are
E1 interfaces that use 120-ohm unshielded twisted pair (UTP) cables.
8-Port Channelized T1/E1 SPA Faceplate
2
1
C/A A/L C/A A/L
C/A (Carrier/Alarm) LED
A/L (Active Loopback) LED
8-Port Channelized T1/E1 SPA LEDs
C/A A/L C/A A/L C/A
STATUS LED
Port is enabled by software, and there is a valid T1 or E1 signal
without any alarms.
Port is enabled by software, and there is at least one alarm.
Port is enabled by software, loopback is off.
Port is enabled by software, loopback is on.
A/L C/A A/L C/A A/L C/A A/L
3
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