Quick-Start Programming
Programming Initial T1 Network Options
DBS-2.3/9.2-540
T1 Networking - Revised April 2000
Page 65
Programming Initial T1 Network Options
The following instructions explain the minimum programming required to
make the T1 Network operational. Default settings appear in bold.
Before attempting to program the network, fill out copies of the planning
forms supplied in Chapter 2 -
System Planning
.
The following procedures include several
Recommended Check Points
. It is
advised that the described checks be performed to test the network setup to
that point. Although it is possible to skip these checks, if these checks are not
performed it is difficult to isolate setup problems.
The following commands must be performed
at each DBS
in the network.
Also, many of the following commands require each DBS system to be reset
to take effect. After all quick start programming is completed (or as directed
at the Recommended Check Point) power the system off for at least 5 seconds
and then back on. It will take at least 1 minute for the T1 to synchronize after
the DBS systems are powered on.
Note:
The T1 circuit card contains several status LEDs that may be checked
as the T1/T1 network is configured. The LED indicators on the front of the T1
card are as follows:
T1 LED
INDICATION
CN3
After the T1 card has been initialized this light should begin blink-
ing. If this light does not blink the T1 card has not been properly ini-
tialized. Check the cabinet program settings.
CFA
Carrier Failure Alarm. This LED lights when the DBS is unable to
synchronize to another T1 signal. The most common problem when
this LED illuminates is a RJ-41 wiring problem.
OOF
Out of Frame. This LED will light when the DBS is unable to sync
to the T1 signal. The most common problem when this LED is illu-
minates is a wiring problem.
SLIP
This alarm lights when the T1 senses a frame error. This LED tog-
gles off and on to indicate that slips have occurred. If the LED light
is on, this does not necessarily indicate that a slip has occurred.
YEL
Yellow Alarm. If a Red Alarm occurs at the far end, the far end
sends a yellow alarm to the DBS. (A red alarm is when a loss of sig-
nal or out-of-frame conditions lasts for more than 2.5 seconds.)
AIS
Alarm Indication Signal. This light is used for testing. It indicates
that all ones are being received.
LOOP
Indicates the DBS T1 card is in loopback mode.
Summary of Contents for DBS Section 540
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