Carrier Access Access Bank II SNMP - Manual (Page 134)

LED Test and Status Indicators
9/24/01 12-13
SNMP Control Panel. Setting this switch to the Alarm Cut-Off position (ON) opens the alarm relay
contacts (150 Vrms, 150 mA maximum load) that close when the Access Bank II - SNMP enters an
alarm state.
Table 9-3 defines the pin functions on the 50-pin Tip & Ring jack.
Table 12-3: 50-Pin Tip & Ring Jack
12.11 LED Test and Status Indicators
Five test and status LED indicators on the Access Bank II - SNMP Control Panel provide a visual
means of identifying system, T1 line and V.35 interface troubles.
Table 12-4: T1 Line Status LEDs for T1 Span 1 and T1Span 2
Pin Location Function
26
1 Tip Channel 1
Ring Channel 1
27
2 Tip Channel 2
Ring Channel 2
↓ ↓
49
24 Tip Channel 24
Ring Channel 24
50
25 Alarm Tip Channel 25
Alarm Ring Channel 25
State Meaning
OFF Loss of T1 signal, no pulses received.
GREEN Access Bank II - SNMP is in frame
with a frame-bit error rate <10E-5.
FLASHING GREEN Access Bank II - SNMP is in frame,
but frame-bit error rate exceeds 10E-
5.
RED AIS (Unframed All Ones Signal)
received from the incoming T1 span.
FLASHING RED Access Bank II - SNMP is not syn-
chronized to the incoming T1 line,
but no AIS is being received.
YELLOW BPV errors received on the T1 line
that are not due to B8ZS line coding.
FLASHING YELLOW Yellow Alarm received from the T1
line.