Bosch D1255B 用户手册

D1255/D1255B | Installation Instructions | 1.0   Description 

 

 

2 

Bosch Security Systems | 8/04 | 74-06819-000-F 

 

1.0   Description 

The D1255/D1255B Keypad is an SDI Bus compatible 
device used with Bosch Security Systems control 
panels. The D1255/D1255B features a keypad that 
illuminates when you press the keys, a 16-character 
English language display, and a built-in speaker that 
emits several distinct warning tones. 

The D1255/D1255B Keypad is a low profile, surface-
mounted unit. 

The control panel supplies all power and data 
requirements for the D1255/D1255B using a simple 
four-wire connection. For specific control panel 
compatibility refer to Table 6 on page 6.  

Refer to the Current Rating Chart for Standby Battery 
Calculations provided in the following documentation, 
based on which control panel connected to the 
D1255/D1255B Keypad to determine if you need an 
additional power supply: 

•

 

D9412G/D7412G Approved Applications Compliance 
Guide (P/N: 43494) if using a D9412G or D7412G 
Control Panel. 

•

 

D7212G Approved Applications Compliance Guide 
(P/N: 4998138560) if using a D7212G Control 
Panel. 

Configurations combining supervised and unsupervised 
keypads are also possible. 

You can program the control panel to generate 
messages to the Central Station identifying the 
supervised keypad that is in trouble. If a keypad loses 
communication with the control panel for more than 
60 sec, the keypad buzzes and 

CALL FOR SERVICE

 

displays. The control panel transmits a serial device 
trouble report to the receiver. The keypad shows 

SDI 

FAILURE #

 if the Modem IIIa

2

 communication format 

is used or 

TROUBLE ZN D

 if the BFSK communication 

format is used. For more information, refer to the 
D6600 Computer Interface Manual (P/N: 4998122703). 

Depending on programming in the control panel, the 
D1255/D1255B permits remote control of relays and 
real time clock display; adding, deleting and changing 
passcodes; system tests, and more. Refer to the Keypad 
and User Interface sections of the D9412G/D7412G 
Program Entry Guide (P/N: 47775) for complete 
programming details on keypad options. You can 
initiate a variety of system commands with the touch of 
two or three keys at the D1255/D1255B keypad. To 
navigate through the system use the four keys near the 
bottom of the keypad (Item 3 in Figure 1). 

 

Figure 1:  D1255/D1255B Layout 

1

2

3

4

5

6

7

8

9

0

COMMAND

ESC

PREV

NEXT

ENT

ALL

INSTANT

DELAY

RESET

WATCH

SPECIAL

PARTIAL

POLICE

BYPASS

MENU

YES

A i   A R E A   i   I S   O F F

4998152977A

 

5 -  Digital Keypad