3100-A2-GK40-40
July 2000
7
Power-On Self-Test
After you install the CSU or DSU/CSU in the carrier and connect the carrier to a
power outlet, the CSU or DSU/CSU performs a power-on self-test to ensure that
the unit is in good working order. For information about the power-on self-test,
refer to the associated operator’s guide
.
To display the pass/fail status of the power-on test, use the procedure described in
Selecting a CSU or DSU/CSU
, and use the Self-Test Health command described
in the associated operator’s guide.
If the LEDs on the circuit card do not light during the self-test, there may be a
failure in the circuit card or in the carrier’s power supply. Install the circuit card in
another working carrier. If it works, or if a second circuit card in another slot in the
same carrier also does not light, check that the power cable is properly attached
and that the outlet is active. Refer to the
COMSPHERE 3000 Series Carrier
Installation Manual
.
Shared Diagnostic Control Panel
Use the LCD and keypad on the carrier’s Shared Diagnostic Control Panel (SDCP)
to select and access individual CSUs or DSU/CSUs within a carrier.
The SDCP includes one LCD, five LEDs, and eight function keys.
The LCD shows messages and menu tree choices. Messages include alarms,
command/test completion, and action in progress.
The OK, Alrm, and Test LEDs reflect the state of the selected CSU or DSU/CSU.
The Bckup and EC LEDs are not used for the 3100 Series products.
The 7-button keypad surrounding the LCD enables you to navigate through the
menu tree and select choices presented on the second line of the LCD. The eighth
key (Select) selects a unit, by slot address, to access through the SDCP. When
you select a particular CSU or DSU/CSU, the OK LED on that unit’s front panel
flashes on and off repetitively.
For more information about the SDCP, refer to the
COMSPHERE 3000 Series
Carrier Installation Manual.
Select
SDU
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
COMSPHERE 3000
Select
Key
Status
Indicators
Carrier Slots 1–16
F1
F2
F3
OK
Alar
m
BckUp Test
EC
Keypad
LCD
Display
496-12348a-03
