Diagnostic Leds; Phone Jack Location - Bosch B5512 Reference Manual

36 en | Telephone communications
Wire to the phone line
Figure 7.1: PTSN module wiring (B5512 shown)
Callout ᅳ Description
1 ᅳ Premises telephone
2 ᅳ Incoming Telco line
3 ᅳ Installer telephone test set
4 ᅳ RJ-45 phone connector
7.1.3

Diagnostic LEDs

The module uses a green LED to indicate when the module is on or off hook or the line is
ringing (incoming phone call).
Flash pattern
OFF
ON
Flash
Table 7.1: PTSN diagnostic LED patterns
7.2

Phone jack location

To prevent jamming of signals, wire the RJ31X or RJ38X jack before the premises telephone
system to support line seizure. Install the jack on the street side of the telephone switch,
wired ahead of any PBX equipment. Line seizure temporarily interrupts normal telephone
usage while the control panel sends data. After installation, confirm that the control panel
seizes the line, acquires dial tone, reports correctly to the receiver, and releases the telephone
line to the in-house telephone system.
2015.07 | 12 | F.01U.287.180 Installation and System Reference Guide
Function
Standby
Line seized
Ringing detect (incoming phone call)
Control Panel
Bosch Security Systems, Inc.