Bosch Appliances D9112 D128 Status LEDs

D9112 Operation & Installation Manual
Page 32
74-06144-000-C 2/96 © 1993-1996 Radionics
D128 Status LEDs
Four LEDs mounted on the front edge of the D128 module show the status of AC power
for the D9112, the status of the two phone lines, and communication failure. See Figure
10.
AC Power LED
The green AC power status LED lights when there is AC power at terminals 1 and 2 on
the D9112 panel.
Primary Fail LED
The yellow Primary Fail LED lights when the D9112’s phone line monitor determines the
primary phone line is faulted. See Phone Line Monitor in this section for a description of
phone line monitor operation.
Secondary Fail LED
The yellow Secondary Fail LED lights when the D9112’s phone line monitor determines
the secondary phone line is faulted. See Phone Line Monitor in this section for a
description of phone line monitor operation.
Communication Failure LED
The yellow Communication Failure LED lights when the D9112 is in communication
failure. See Communication Failure in this section.
Figure 10: D128 Dual Phone Line Switcher
CONNECT TO D9112 ACCESSORY
CONNECTOR (J2) WITH RIBBON CABLE
PHONE JACK TO PRIMARY
PHONE LINE - RJ31X
PHONE JACK TO SECONDARY
PHONE LINE - RJ31X
PHONE JACK TO D9112 TELCO
CONNECTOR (J3)
GREEN ÊÑ TO D9112
TERMINAL 1
AC POWER
LED
(GREEN)
PRIMARY
FAIL LED
(YELLOW)
SECONDARY
FAIL LED
(YELLOW)
COMMUNICATIONS
FAILURE LED
(YELLOW)
BLK ÊÑ TO D9112
TERMINAL 9