IOP and IOA Module Specifications
8-port T1 and E1 IOP Modules
Beta Draft Confidential
A-44/5/03 CBX 500 Multiservice WAN Switch Hardware Installation Guide
E1 Interface Standards
• ATM Forum UNI 3.0/3.1
• ITU G.703
• ITU G.704
• ITU G.804
• ITU G.823
Status Indicators
LEDs: Good (green), Failed (red)
Port Alarm Indicators
LEDs: Yellow, Red
,
Figure A-1 on page A-5 shows the T1 IOP and IOA, the E1 IOP, and 75-ohm and
120-ohm E1 IOA modules.
LED State Status
Good ON Normal operation
Failed ON Indicates module failure
LED State Status
Yellow ON Downstream equipment sees loss of signal
Red ON Loss of signal
Red BLINKING Downstream equipment failure
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