Specifications

Section 360-381-202
11
Table 1. LED Definitions
Label Color Status Indicates that...
POWER Green ON The unit is receiving power.
OFF The unit is not powered.
AR Red ON The unit is detecting a red alarm on the T1 interface caused by a loss of signal
(LOS) or a loss of framing (LOF) or out of frame (OOF) condition.
OFF Normal operation.
AY Yellow ON The unit is receiving a YELLOW alarm condition on the T1. This indicates that a
problem is upstream at some other device or network node.
OFF Normal operation.
TP Yellow ON The system is processing trunk signaling data based on detected alarm conditions.
OFF Normal operation.
LP Green ON The unit is in a loopback condition. This indication only occurs during testing.
Flashing Valid external timing source has been lost.
OFF Normal operation.
5.4 Connector Definitions
5.4.1. Bantam Jacks
The two bantam jacks on the front of the unit allow monitoring of the transmit (XMT) and receive (RCV) sides of
the primary T1 signal without interfering with operation.
5.4.2. Front Panel RJ11 Jack
The RJ11 jack on the front of the unit is the local craft/control port. The default interface is an RS232 connection
that defaults to 9600 baud, 8 bits, 1 stop and no parity. The interface through the control port is VT-100. VT-100
operation on a PC requires VT-100 emulation software.
A cable (03-200542-0) is available to connect the front panel RJ11 jack to a DB-9 connector.
Table 2. Front Panel RJ11 Jack Pinouts
Pin # Use DB9 Pinouts
123456
1 NC
1
2
3
4
5
6
2 GND 5
3 RCV (ICB − input) 3
4 XMT (ICB + output) 2
5 Enable PC (ICB input) 7
6 NC
5.4.3. T1 Jack
The RJ48 connector on the rear of the T1-S is for the primary T1.