Advertisement
Telco Status and Specifications
T1/E1 LEDs
T1/E1 LEDs indicate line coding, network framing, and loopback status. The Line Coding LED is on the
port's left side. The Framing LED is on the port's right side.
LED
Line coding
Framing
*
Specifications
Feature
Dimensions
Weight
Input voltage
Power consumption
Humidity
Operating temperature
Copyright © 2018 Mitel Networks Corporation. All rights reserved. The Mitel word and logo are trademarks of Mitel Networks
Corporation. Any reference to third-party trademarks is for reference only and Mitel makes no representation of ownership of
these marks. 180802
Color/State
Green
Yellow
Red*
Off
Green
Yellow
Yellow-Flashing
Red*
Off
Red Flashing
Specification
14.65 x 8.35 x 1.65 inches (372 x 212 x 42 mm)
5.3 lb (2.40 kg)
100-240 VAC, 50-60 Hz
1A max.
5-90% relative humidity (non-condensing)
0-50˚ C
Description
For the T1 connection, this indicates the AMI or B8ZS
line coding signal is good. For the E1 connection, this
indicates the HDB3 line coding signal is good.
This switch is receiving bipolar violations (BPV) at one-
second intervals.
A loss of signal (LOS) has occurred.
The switch has no power.
The T1 or E1 signal is in frame (synchronized)
The CO has sent a yellow alarm.
The frame-bit error rate has exceeded its limits
T1 signal is out-of-frame (OOF) and cannot be framed to
the Extended Superframe (ESF) or D4 format. E1 signal
is out-of-frame (OOF).
The switch has no power.
If both the line coding and framing LEDs are
simultaneously flashing red, loopback is enabled.
Loopback can be enabled from Director or at the CO for
the T1 connection.
Advertisement
