Front Panel - ADC FRC-754 4B Technical Practice

Front Panel

F P
RONT ANEL
The FRC-754 front panel
and off-hook conditions, as well as a red LED indicating a fault condition on the CU.
List 1A front panel LED states and functions, and describes the labels.
LED and Labels
ACTIVE
(1 through 8)
FAULT
Warranty Control
Number Label
Bar Code Label
2
(Figure 1) includes green status LEDs for each line indicating on-hook (idle), ringing,
PG-FLEX
FRC 754
LIST 1
1
2
3
A
C
4
T
I
5
V
E
6
7
8
FAULT
Figure 1. FRC-754 List 1A Front Panel
Table 1. FRC-754 Front Panel LEDs and Labels
Function
Solid green: Channel is off hook.
Fast flashing green: Channel is in test access mode.
Slow flashing green: LED follows the ring signal.
Off: Channel is on hook (idle).
Red: Fault detected by the unit. See
Off: No faults detected.
Indicates the beginning year and month of the equipment warranty. Also indicates the unit revision
number. For example, a warranty control number of 71203 indicates a warranty beginning 1997 (7),
in December (12), and the revision is 03.
Contains the serial number and part number of the equipment in both bar code and text formats.
January 6, 2003
Status LEDs
Fault LED
Table 10 on page 9 for troubleshooting procedures.
SCP-FRC754-042-03H
Table 1 lists the FRC-754
FRC-754 List 4B