Bosch D9412GV4 Installation And Operation Manual page 66

12.0 SDI Devices
12.1 Description
The GV4 Series Control Panels can support a
number of accessory devices from the SDI Bus
using Terminals 29 through 32. Some devices
include the D1255 and D1255B Keypads (refer to
Section 11.0 Arming Devices on page 62), D9131A
Parallel Printer Interface Module, D9210C Access
Control Interface Module, DX4010i RS-232 Serial
Interface Module, ITS-DX4020-G GPRS/GSM
Communicator, and DX4020 Network Interface
Module.
For UL 864 Commercial Fire
applications, refer to Installing
Combination Fire and Intrusion Alarm
Systems in the
D9412GV4/D7412GV4/D7212GV4
Approved Applications Compliance
Guide (P/N: F01U201525) for
important information about
combination fire and intrusion
systems.
12.2 Installation
For complete installation instructions, consult the
operation and installation guide for the specific
SDI device. SDI devices connect to the control
panel in parallel (Table 21).
These devices can share power with the control
panel or be powered by a stand-alone power
source.
Table 21: SDI Device Connections
SDI Devices
Terminal Function
32 POWER +
31 DATA BUS 1
30 DATA BUS B
29 COMMON
A stand-alone power supply powering
the SDI device must also be
connected to a common terminal on
the control panel.
Do not connect the earth ground for
the stand-alone power supply to
Terminal 10 on the control panel.
Bosch Security Systems, Inc. | 3/12 | F01U266054-01
D9412GV4/D7412GV4/D7212GV4 | Installation and Operation Guide | 12.0 SDI Devices
Wire Color Function
Red +12.0 VDC
Yellow Data
Green Data
Black Common
12.2.1 Open Wide Trouble on SDI
The GV4 Series Control Panels can detect an
open wire fault in the data communication lines
of the SDI bus. Any open wire on Terminals 30 or
31 result in a system fault trouble display on all
keypads, and a general SDI Fault event sent to
the central station.
12.3 D9131A Parallel Printer Interface
Module
The Bosch Security Systems, Inc. D9131A Parallel
Printer Interface Module is a four-wire powered
device used to connect a standard parallel printer
to a control panel. D9412GV4 can supervise three
printers and the D7412GV4 or D7212GV4 can
supervise one printer. A separate D9131A Parallel
Printer Interface Module is necessary for each
printer. The D9131A connects to the printer using
a standard parallel printer cable.
12.3.1 Switch Settings
Switches on the D9131A assign a unique address
(17 to 19) for each printer. The address
determines if the printer is supervised, the area
scope of the printers, and the area to which the
printer is assigned. Refer to Printer Parameters in
the D9412GV4/D7412GV4/D7212GV4 Program
Entry Guide (P/N: F01U218312) for a complete
description of addresses.
Table 22 shows the correct switch setting for
each address.
Table 22: Printer Address Switch Settings
Printer Switch
1 2
17 ON ON
18 1 OFF ON
19 ON OFF
1
D9412GV4 only.
1
Switch ON = Header and form feed
2
4: OFF = No header and form feed
12.3.2 Supervision
Supervision includes:
 Proper operation of the SDI bus
 Proper connection of the printer cable
between the printer and the D9131A

Printer paper supply
 Printer selected (on-line)

Printer power.
3 4 5 6
2
ON ON ON ON
ON ON ON ON
ON ON ON ON
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