Bosch Appliances D7212G SDI Devices 11.0SDI Devices, 11.1Description, 11.2Installation, Printer

D7212G

SDI Devices

11.0SDI Devices

11.1Description

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.

11.2Installation

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.

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

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.

IMPORTANT

11.3D9131A 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.

11.3.1Switch 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.

Table 15 shows the correct switch setting for Address 17.

Printer

Switch

1 2 3 4 5 6

17

ON

ON

ON

*

ON

ON

* ON = Header and Form Feed

OFF = No Header and No Form Feed

Table 15: Printer Address Switch Settings

11.3.2Supervision

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.

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.

D7212G Operation and Installation Guide

© 2003 Bosch Security Systems Page 53 4998138544C