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7. Use the C900TTL-E with a UL Listed Burglary
Alarm Control Unit or a UL Listed combination
Fire/Burglary Alarm Control Unit with an
integral or Listed DACT (Digital Alarm
Communicator Transmitter), installed according
to the manufacturer's instructions.
8. Install a tamper switch (such as a D110 Tamper
Switch, available from Bosch Security Systems,
Inc.) on the control panel enclosure, and
connect it to a 24-hour zone on the control
panel. If a separate enclosure is used for the
C900TTL-E, install another tamper switch
(D110) on the enclosure and connect it to the
same 24-hour zone.
9. Set DIP Switch 5 to ON to enable Auto
Fallback.
10. Set DIP Switch 6 to OFF so that three hang-ups
can cause fallback.
11. Set DIP Switch 9 to ON to enable Anti-
Substitution/Anti-Replay (version 1.08 or later).
6.2.1
C900TTL-E and Generic Control Panel in
Separate Enclosures
Refer to Figure 16 on page 25 for component
locations.
Refer to Figure 17 on page 26 for proper connection
sequence.
The telephone line is not required but can
be used for panel programming and panel
diagnostics only.
Bosch Security Systems, Inc. | 5/07 | 4998122718-02
C900TTL-E | Installation Guide | 6.0
UL Standard 1610 Intrusion System Installations
6.2.2
Setting the DIP Switch
A 10-position DIP switch programs the C900TTL-E.
The programming depends on the application and
dialer format of the Alarm Panel to which it is
connected.
Switch positions 1 through 4, and 10 work together
to program the dialer format into the C900TTL-E.
The C900TTL-E must emulate a phone line
and a digital receiver. It must be
programmed to recognize the format sent
from the control panel.
Table 9 on page 27 and Table 10 on page 28 define
DIP switch settings and functions, and expected
digital dialer protocol for Dialer Format switches
1 through 4, and 10.
If either or both of the following conditions
exists when the alarm panel seizes the line,
any error forces the C900TTL-E to switch
the control panel dialer to the Fallback
(telephone line backup) position for two
minutes:
•
DIP Switch 5 is ON
•
DIP Switch 6 is OFF
Intercept errors are always reported to the
D6600. If the D6600 does not
acknowledge a signal that was intercepted
by the C900TTL-E in the proper amount of
time, the control panel digital dialer hangs
up and retries the message transmission.
.
29
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