Filter
Top Products
D1255/D1255B | Installation Instructions | 2.0 Digital Keypad
Bosch Security Systems | 8/04 | 74-06819-000-F 3
2.0 Digital Keypad
The D1255/D1255B Keypad features a digital keypad
for accessing the menus, entering user passcodes and
executing system commands in the control panel. As
you press keys, the D1255/D1255B emits a muted
beep tone (refer to Section 2.3 Audible Tones) to indicate
that the entry is accepted. The keypad lights when you
press keys, and remains lit for 20 sec.
When entering a passcode, press keys within 15 sec of
each other. If 15 sec elapse between keystrokes, the
entire entry clears, and you must start over. The
keypad also "times out" on other functions if you wait
15 sec or more between key presses.
2.1 Keypad Function Keys
The D1255/D1255B has five function keys. These keys
control your system.
Table 1: Function Keys
Key Description
COMMAND Use the [COMMAND] bar in combination
with one or two numeric keys to perform a
function.
ENT/YES Use the [ENT/YES] key to complete the
entry of your passcode at the keypad.
The [ENT/YES] key also selects the menu
item shown during a menu selection.
PREV When viewing a list, pressing the [PREV]
key returns you to the previously shown
item.
NEXT Press the [NEXT] key to pass over the
present item in a menu or list.
MENU/ESC Use the [ESC/MENU] key to returns to
the idle display.
2.2 Display
The D1255/D1255B Keypad displays the latest status
conditions of the security system using words, numbers,
and symbols in its display. When a series of events
occur that affects the system, the D1255/D1255B
displays each event in order of its priority.
For a complete listing and description of the
D1255/D1255B 16-character displays and command
functions available, consult the following
documentation:
For the D9412G, D7412G, D7212G, D9124, D9412,
D9112, D7412, and D7212 Control Panels consult
Security System User’s Guide (P/N: 71-06141-000) and the
D9412G/D7412G Program Entry Guide (P/N: 47775).
2.3 Audible Tones
The D1255/D1255B Keypad has a built-in speaker that
produces several distinct warning tones. The speaker
volume is changed by adjusting the potentiometer
(refer to Item 5 in Figure 2 on page 4). Turn the
potentiometer clockwise to increase volume and
counterclockwise to decrease volume. The speaker
volume also changes as you adjust the brightness of the
display. Refer to Command 49 “Dim Display” in the
Security System User’s Guide (P/N: 71-06141-000) for
more information. You cannot connect external
annunciation devices to the D1255/D1255B. The tones
in Table 2 are silenced by entering a programmed
passcode with the appropriate authority.
Table 2: Audible Tones
Tone Description
Burglary
Signal
When an area is in alarm, the D1255/D1255B
emits a steady, high-pitched “bell” tone.
Entrance
Warning
The D1255/D1255B emits an intermittent beep
tone during entry delay periods to remind the
user to disarm the area. This is a programmable
option.
Exit
Warning
The D1255/D1255B emits an intermittent beep
tone during exit delay and counts down the
number of seconds left until arming takes place.
This is a programmable option.
Fire Signal When an area is in fire alarm, the
D1255/D1255B emits a pulsed, high-pitched
“bell” tone.
Invalid Key
Buzz
Pressing an invalid key, or sequence of keys,
causes the D1255/D1255B to emit a flat buzz
tone.
Keypad
Encoding
Tone
The D1255/D1255B emits a muted beep tone
as each key is pressed to indicate that the entry
is accepted. To disable this feature refer to
Section 3.3.1 Setting the DIP Switches on
page 5.
Trouble
Buzzer
When a trouble event occurs, such as a service
alert, the D1255/D1255B emits a two tone
warble until you enter COMMAND 4.
Watch
Tone
When you activate the Watch feature, an
intermittent beep tone (the same as the
Entrance Warning Signal) alerts the user
anytime a watch point is faulted. This option is
programmable by point.