Bosch Appliances Home Security System D7212G User Manual
D7212G Operation and Installation Guide
D7212G
Page 53
© 2003 Bosch Security Systems
4998138544C
SDI Devices
11.0 SDI Devices
11.1
Description
The D7212G Panel can support a number of accessory devices off the SDI bus using Terminals 29 through 32. Some devices
include the Command Centers (discussed in the previous section), the D9131A Parallel Printer Interface Module, the D9133
Serial Interface Module, the D9133DC Direct Connect Module, and the D9133TTL-E Network Interface Module.
include the Command Centers (discussed in the previous section), the D9131A Parallel Printer Interface Module, the D9133
Serial Interface Module, the D9133DC Direct Connect Module, and the D9133TTL-E Network Interface Module.
11.2
Installation
Consult the Operation and Installation Guide of the specific SDI device for complete installation instructions. SDI devices
connect to the panel in parallel as shown in Table 14.
connect to the panel in parallel as shown in Table 14.
These devices may share power with the panel or be powered by a stand-alone power source.
D7212G
SDI Devices
Terminal
Function
Wire Color
Function
32
POWER +
Red
+12 VDC
31
DATA BUS A
Yellow
Data-In
30
DATA BUS B
Green
Data-Out
29
COMMON
Black
Common
Table 14: SDI Device Connections
IMPORTANT
A stand-alone power supply powering any SDI device must also be connected to a common terminal on the panel.
Do not connect the stand-alone power supply’s earth ground to Terminal 10 on the panel.
Do not connect the stand-alone power supply’s earth ground to Terminal 10 on the panel.
11.3
D9131A Parallel Printer Interface Module
The Bosch Security Systems D9131A Parallel Printer Interface Module is a 4-wire powered device used to connect a standard
parallel printer to a panel. The D7212G can supervise one printer. Each printer requires a separate D9131A Parallel Printer
Interface Module. The D9131A connects to the printer using a standard parallel printer cable.
parallel printer to a panel. The D7212G can supervise one printer. Each printer requires a separate D9131A Parallel Printer
Interface Module. The D9131A connects to the printer using a standard parallel printer cable.
11.3.1
Switch Settings
Switches on the D9131A assign the address to the printer. The address determines if the printer is supervised, the printer's
scope, and the area to which the printer is assigned. See Printer Parameters in the D7212G Program Entry Guide (P/N:
4998138538) for a complete description of addresses.
scope, and the area to which the printer is assigned. See Printer Parameters in the D7212G Program Entry Guide (P/N:
4998138538) for a complete description of addresses.
Table 15 shows the correct switch setting for Address 17.
Switch
Printer
1
2
3
4
5
6
17
ON
ON
ON
*
ON
ON
* ON = Header and Form Feed
OFF = No Header and No Form Feed
OFF = No Header and No Form Feed
Table 15: Printer Address Switch Settings
11.3.2
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), and printer power.
D9131A, printer paper supply, printer selected (on-line), and printer power.
The panel sends an SDI failure report to the receiver if it fails to communicate with the printer interface, and
SERVC PRINTER
displays at the command center. The report to the receiver includes the address of the troubled D9131A
to indicate which printer needs service.
If an SDI device is supervised and SDI A becomes disconnected, the device may still operate normally, depending upon
environmental conditions.
environmental conditions.