Bosch D1257 Installation Guide download pdf (Page 29)

D7212GV3 | Operation and Installation Guide | 8.0 On-Board Points

Bosch Security Systems, Inc. | 10/10 | F01U143079-03 29

8.4 Point Response Time

The control panel scans on-board and off-board point

sensor loops every 300 ms. The Debounce program

item in the Point Assignment section of the software

determines point response time by setting the number

of times the control panel scans a point before

generating an alarm.

The debounce count can range from 2 to 15;

therefore, point response time ranges from 600 ms to

4.5 sec. The Bosch Security Systems, Inc. default for

debounce count is 2.

Increasing debounce might cause missed

alarms. If you increase the debounce count,

detection devices can enter alarm and reset

without exceeding the point response time.

Use a debounce count of 2 for all points except for

Interior Follower points. Program Interior Follower

points as 3.

8.5 Wiring Information for Installations

Using the Rothenbuhler

5110/4001-42 High Security Bell

Warning: Wear ear protection when

installing and testing the Rothenbuhler High

Security Bell.

Sound levels greater than 95 dBA at

3 m (10 ft) can occur.

1. Remove all power from the control panel.

2. Use six-conductor 1.2 mm (18 AWG) shielded

stranded wire between the control panel and the

5110 Logic Board (located in the bell enclosure).

3. If you do not have a Silence switch, temporarily

install a 1 Ω resistor across TB1-1 and TB1-6 on

the 5110 Logic Board. The resistor keeps the

5110’s bell silent during the installation and

alignment procedures. Also place a temporary

wire jumper across the TB1-6 Bell Relay and

TB1-7. Refer to Figure 12 on page 31 for wiring a

Silence switch.

4. Mount the D8108A’s 4001-42 External Balanced

Line Module and wire it to the 5110 Logic Board

using two-conductor 0.8 mm (22 AWG) cable.

5. Wire the 4001-42 to the control panel. Refer to

Figure 12 on page 31 and the Rothenbuhler

installation manual.

6. Before supplying AC and DC power to the control

panel and bell, ensure you are wearing ear

protection. The bell sounds for 2 sec and then

silences during power up.

For additional information about bell requirements,

refer to Bank Safe and Vault Applications in the

D7212GV3 Approved Applications and Compliance

Guide (P/N: F01U143080).

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