Table of Contents
1
UNPACKING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
1.1 Backbox Module . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
2
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
3
DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
4
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
4.1 Environmental Air Space Information . . . . . . . . . .8
4.2 Backbox Module . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
4.3 Ceiling Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
4.3.1 Backbox Module Mounting in
Suspended Ceiling . . . . . . . . . . . . . . . . . . . . . . . .8
4.4 Address Switch Settings . . . . . . . . . . . . . . . . . . . . . . .9
4.5 Backbox Module Mounting . . . . . . . . . . . . . . . . . . .9
4.6 Installing the Backbox . . . . . . . . . . . . . . . . . . . . . . .10
4.7 Connecting Power, Signal, and Video . . . . . . . . . .10
4.7.1 Connecting Line Power . . . . . . . . . . . . . . . . . . .11
4.7.2 Connecting Biphase Signal Code . . . . . . . . . . .11
4.7.3 Connecting the AutoTracker (optional) . . . . . .12
4.7.4 Connecting the RS-232 / RS-485
Signal Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
4.7.5 Connecting the Video Cable . . . . . . . . . . . . . . .12
4.7.6 Connecting the Alarms and Relay Output . . . .12
5
MAINTENANCE/COMPONENT
REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
1 UNPACKING
Unpack carefully. This is electromechanical equipment and
should be handled carefully.
Verify that the following items are included:
•
LTC 7490/20C unit:
Backbox
Base Bracket Assembly
Trim Ring
If an item appears to have been damaged in shipment, replace
it properly in its carton and notify the shipper. If any items are
missing, notify your Bosch Security Systems, Inc. Sales
Representative or Customer Service Representative.
The shipping carton is the safest container in which the unit
may be transported. Save it for possible future use.
1.1
Backbox Module
The LTC 7490/20C Backbox Module houses the Camera
Module, and includes a bracket assembly for mounting onto a
ceiling tile, trim rings for attractive appearance, and an isolated
power supply.
Model
Rated
Voltage
Power at
No.
Voltage
Range
Rated Voltage
LTC 7490/20C
24 VAC
21 to 30
15 W
50/60 Hz
2
SERVICE
If the unit ever needs repair service, the customer should con-
tact the nearest Bosch Security Systems, Inc. Service Center for
authorization to return and shipping
instructions.
Service Centers
U.S.A.: Phone: 800-366-2283 or 408-956-3895
fax:
800-366-1329 or 408-956-3896
e-mail: [email protected]
Canada:
514-738-2434
Europe, Middle East & Asia Pacific Region:
32-1-440-0711
For additional information,
see www.boschsecuritysystems.com.
3 DIMENSIONS
Figure 1: Dimensional Outline
(Camera Module Assembled in Backbox)
Introduction
EN
© 2003 Bosch Security Systems
Page 7 of 16
mm
in
175.9
6.93
Ø
164.1
6.46
15.2
0.60
159.3
6.27
Ø
87.5
3.45
188.5
7.42
Ø
