Specifications

Chapter 1 Overview D8E1T1 Installation and Operation Manual
1-2 Physical Description
Thumbscrews at the top and bottom of the panels secure the modules in the
chassis and make electrical connection to frame ground for regulatory emission
compliance. The electrical connection to frame ground also protects the modules
from static discharge. Top and bottom card ejectors on the application module
facilitate its removal (and insertion).
Application Module
Front Panel
The D8E1T1 application module occupies one application module slot in the
DXC-100 chassis. The panel of the D8E1T1 application module is shown in
Figure 1-1. The module panel includes eight groups of status indicators (one group
for each link), and a common READY indicator. Table 1-1 explains the functions of
the indicators located on the module panel.
Table 1-1. D8E1T1 Module Indicators
Indicator State Description
Green Link is operational and functioning properly. The link
is free of Framing Errors, and there are no alarms.
Red A Link Fault or alarm condition exists, such as Yellow
Alarm, AIS, LOF, etc.
STATUS
OFF The link is configured as Out of Service.
Yellow The T1/E1 link is in a loopback condition, or link BERT
is enabled.
Flashing Yellow An error has been detected during T1/E1 link BERT.
TEST
OFF No testing is being conducted.
Green Module is fully operational and in an online state.
Flashing Green Module is fully operational, and in a standby state
(when N+1 redundancy has been implemented).
Red Module is in a system bus error state.
Flashing Red Module is in offline (fault) state
READY
OFF Module is not powered up.
1
2
3
4
5
6
7
8
STATUS
TEST
TEST
TEST
TEST
TEST
TEST
TEST
TEST
STATUS
STATUS
STATUS
STATUS
STATUS
STATUS
STATUS
D8E1T1
READY
Figure 1-1.
D8E1T1 Module
Panel