Central Station Tips; Back-Up Receiver; Computer Interface; D6200 Programming Software - Bosch D6600 Operation And Installation Manual

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14.0 Central Station Tips

14.1

Back-up Receiver

Spare circuit boards and receivers should be available
at the central station. Keep a spare kit on hand. UL
Listed central stations monitoring burglary or fire
alarms must have a spare receiver available for
activation within 30 sec.
14.2

Computer Interface

Keep spare cards for all receiver
components.
Keep a spare CPU terminator card in the
central station.
14.3

D6200 Programming Software

Keep D6200 Programming Software in
the central station at all times.
14.4

Telephone Lines

14.4.1 Emergency Ringers

Extension ringers for incoming receiver telephone lines
are available from telephone equipment supply
companies. They ring briefly to indicate an incoming
call. If they continue to ring, your receiver is out-of-
service. The ringer has a volume control, but in a high
traffic central station, you might prefer to use beehive
lights instead of ringers.

14.4.2 Rotary Lines

Use rotary receiver lines (hunt groups) to
prevent delay in alarm signals during
periods of busy central station traffic.
Rotary lines are also important for providing alternate
paths when a line is out of service. To use this feature
have your dispatcher dial the out-of-service line and
leave the calling telephone off the hook. This creates a
busy signal on the line to all incoming communicators.
The communicators automatically switch to an unused
line. The telephone company provides rotary service
when ordered.
UL and Factory Mutual central station
service standards require constant
monitoring of telephone lines.
Bosch Security Systems | 2/05 | 4998122704E
D6600 | Operation and Installation Guide | 14.0
14.5
Connect the receivers to an earth ground, not a
chassis or electrical ground. Measure the resistance of
the receiver ground to another ground. If the meter
reads above 2 Ω, check your receiver ground against a
third ground. If the difference is still greater than 2 Ω,
ground your receiver to a different earth ground. Cold
water pipes or a grounding rod usually make a good
earth ground. The grounding wire should be heavy
copper with as short and straight a run as possible.
Avoid sharp bends in the ground wire because a large
power surge might arc across the bend.
The terminator cards and their connection to the
receiver cabinet provide the ground source for the
receiver's circuit boards. Firmly tighten all the screws
used to secure the terminator cards to the back of the
receiver cabinet.
Put an anti-static mat in front of the receiver to prevent
electrostatic discharge from the operator to the
equipment.
14.6
The D6600 Receiver is microprocessor based. All
microprocessors are susceptible to radio frequency
interference (RFI), especially at the 480 MHz and
950 MHz bandwidths used by walkie-talkies. Never
operate a walkie-talkie near a receiver.
14.7
Periodically check your receiver and its telephone lines
by using a digital communicator triggered by an
interval timer. If you have more than one data line, use
a communicator for each line or use a multiple number
communicator.

Proper Ground

If the mounting bracket screws are not
tight, the receiver's operation can be
erratic. A short circuit or foreign voltage
induced into the system can cause the
receiver to fail.

Radio Frequency Interference

Test Communicator

Central Station Tips
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