Bosch D1255TD User Manual

Command Center D1255TD
Installation Instructions
1.0 Description
The D1255TD Command Center is an SDI buss compatible device used with Bosch Security Systems control/communicator
panels. The D1255TD features a keypad that illuminates when you press the keys, a sixteen-character English language
display, and a built-in speaker that emits several distinct warning tones.
The panel supplies all power and data requirements for the D1255TD via a simple four-wire connection. For specific panel
compatibility refer to Table 1: Panel Compatibility Chart, p. 2 of this document. See the Current Rating Chart for Standby
Battery Calculations provided in the Operation and Installation Guide for the specific panel used with the D1255TD to
determine if you need an additional power supply. Configurations combining supervised and unsupervised command
centers are possible.
You can program the panel to generate messages to the D6500 identifying the supervised command center that is in trouble.
If a command center loses communication with the panel for more than 60 seconds, the command center buzzes and CALL
FOR SERVICE displays. The panel transmits a serial device trouble report (SDI FAILURE in Modem, TROUBLE ZN
D in BFSK) to the receiver.
Depending on programming in the panel, the D1255TD permits remote control of relays and real time clock display; adding,
deleting and changing passcodes, system tests, and more. See the Command Center and User Interface sections of the Program
Entry Guide for complete programming details on command center options. You can initiate a variety of system commands
with the touch of two or three keys at the D1255TD keypad. To navigate through the system use the five keys near the bottom
of the keypad.

Bosch D1255TD Specifications

General

Brand	Bosch
Model	D1255TD
Category	Controller
Language	English

Summary

Description of the D1255TD Command Center

D1255TD Specifications

Wiring Connections

Details wiring between D9112/D7212 and D1255TD using flying leads.

Panel Compatibility Chart

Lists control panels compatible with the D1255TD command center.

Power Specifications

Specifies the nominal 12 VDC power supplied to the D1255TD by the panel.

Current Requirements

Details idle and maximum current consumption of the D1255TD.

Wiring Details

Describes the 4-wire expansion cable and resistance limits for wiring.

Physical Dimensions

Provides the physical dimensions (HxWxD) of the D1255TD.

Color Specification

Specifies the color of the D1255TD unit.

Display Characteristics

Describes the sixteen-character vacuum fluorescent display and its color.

Operating Temperature Range

Lists the acceptable operating temperature range for the D1255TD.

Relative Humidity Limits

Specifies the acceptable relative humidity range for the D1255TD.

Digital Keypad Operation

Keypad Behavior

Explains keypad feedback, lighting, and timeout behavior during operation.

Command Center Function Keys

COMMAND Key Usage

Details using the COMMAND key with numeric keys for system functions.

ENT/YES Key Function

Describes the ENT/YES key for passcode entry and menu selection.

PREV Key Navigation

Explains navigation back to previous items using the PREV key.

NEXT Key Navigation

Explains advancing to next items using the NEXT key.

MENU/ESC Key Usage

Describes using MENU/ESC to access functions and return to idle display.

Display Information

Display Content Overview

Explains how the D1255TD displays system status, words, numbers, and symbols.

Audible Tones

Burglary Signal Tone

Describes the steady, high-pitched bell tone for burglary alarms.

Entrance Warning Tone

Explains the intermittent beep tone during entry delay periods.

Exit Warning Tone

Describes the intermittent beep tone during exit delay and countdown.

Fire Signal Tone

Describes the pulsed, high-pitched bell tone for fire alarms.

Invalid Key Buzz Tone

Explains the flat buzz tone for invalid key or sequence presses.

Keypad Encoding Tone

Describes the muted beep tone for accepted key presses.

Trouble Buzzer Tone

Describes the two-tone warble for trouble events until a specific command is entered.

Watch Tone

Explains the intermittent beep tone for faulted watch points.

DIP Switch Settings and Functions

Setting DIP Switches for Addresses

Guides on assigning addresses for supervised command centers using DIP switches.

Mounting the D1255TD

Mounting Location Guidelines

Provides guidelines on suitable and unsuitable locations for mounting the D1255TD.

Wiring the D1255TD