D7212G Operation and Installation Guide
Page 16 © 2003 Bosch Security Systems4998138544C
D7212G
Overview
2.2.1 Compatible Accessories
See the Bosch Security Systems Intrusion Catalog for a complete list.
D122 Dual Battery Harness D1256 Fire Command Center
D125B Powered Loop
Interface Module
D1257 Fire Annunciator
D126
12 V, 7 Ah
Rechargeable Battery
D1260 Alpha V Command Center
D127 Reversing Relay D1640 16.5 VAC 40 VA Transformer
D129
Dual Class A Initiation
Circuit Module
D5200 Programmer
D130 Relay Module D5500 Remote Account Manager IV
D136 Plug-In Relay D8004 Transformer Enclosure
D161 Phone Cord
D8121A,
D8122
Derived Channel STU
D162 Phone Cord D8125 POPEX Module
D185 Reverse Polarity
Module
D8125MUX Multiplex Bus Interface
D192C/D192G Bell Circuit
Supervision Module
D125INV* Wireless Interface Module
D279A
Independent Zone
Control (On-Board
and OctoPOPIT
Points)
D8128D OctoPOPIT Module
D442 Bells (10 in.) D8129 OctoRelay Module
D448/D449 Mini-Horns D8130 Release Module
D720
Command Center
(Area LED)
D9127U/T POPIT Module
D720R LED Command
Center (red)
D9131A Parallel Printer Interface Module
D720W LED Command
Center (white)
ZX776Z PIR Motion Sensor (50 ft.) with
POPIT
D1218
12 V, 17.2 Ah
Rechargeable Battery
ZX794Z
PIR Motion Sensor (80 ft.) with
POPIT
D1255 Command Center
(General Purpose)
ZX835 PIR/Microwave Motion Sensor
(35 ft.)
D1255R Command Center
(red)
Z938Z PIR Motion Sensor (60 ft.) with
POPIT
D1255W
Command Center
(white)
ZX970
PIR/Microwave Motion Sensor
(70 ft.) with POPIT
* The D8125INV has not been
investigated by UL. Not to be used
in UL Listed installations.
2.3 Features in D7212G
2.3.1 Introduction
The Bosch Security Systems D7212G Control/Communicator provides up to 40 points of protection and supports up to
four separate areas. The panel is armed and disarmed by area, and several areas can be armed and disarmed with one menu
function. The D7212G uses a built-in digital communicator to send reports to the receiver. A maximum of 32 unsupervised
command centers can be connected to the system.
2.3.2 Ground Fault Detect
In order for the D7212G to be able to detect ground fault conditions, the Earth Ground Terminal on the control/
communicators had to be electrically isolated from all other terminals. A Ground Fault Detect Enable switch (S4) has been
added to the panel and is located just under Terminal 10, Earth Ground. For more information on the operation of this
function, see Section 3.5.2 Ground Fault Detect Enable on page 22.
