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Bosch Security Systems | 29 March 2004
1UNPACKING
Unpack carefully. This is electronic equipment and
should be handled carefully.
Check for the following items:
•Two LTC 8557 Junction Boxes.
• One TC120PS power supply for LTC 8557/60
or one TC220PS power supply for LTC 8557/50
with cable.
• One 3 meter (10 ft) cable.
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.
The shipping carton is the safest container in which
the unit may be transported. Save it for possible
future use.
2SERVICE
If the unit ever needs repair service, the customer
should contact the nearest Bosch Security Systems, Inc.
Service Center for return authorization and shipping
instructions.
Service Centers
USA
Phone: 800-366-2283 or 717-735-6638
fax: 800-366-1329 or 717-735-6639
CCTV Spare Parts
Phone: 800-894-5215 or 408-956-3853 or 3854
fax: 408-957-3198
e-mail: BoschCCTVparts@ca.slr.com
Canada
Phone: 514-738-2434
Europe, Middle East & Asia Pacific Region
Phone: 32-1-440-0711
For additional information, see
www
.boschsecuritysystems.com.
3DESCRIPTION
The LTC 8557 Series is an interface kit used to remote
Intuikey series and LTC 8555 series keyboards up to
1.5 km (5000 ft) away from main CPU bay. Customer
supplied 0.5 mm
2
(24 AWG) shielded-twisted pair
(Belden 9841 or equivalent) is required between main
CPU bay site and keyboard site. The kit provides two
junction boxes, interface cable, and appropriate
keyboard power supply.
3.1 Power
Model No. Rated Voltage Power
Voltage
1
Range
LTC 8557/60 120 VAC, 108 to 132 10 W
50/60 Hz
LTC 8557/50 220-240 VAC, 198 to 264 15 W
50/60 Hz
1
Use only the recommended power supplies. Substitutions may
damage the unit, cause a fire, or shock hazard.
LTC 8557/50: For continued safe operation, these units
should only be connected to a power supply
complying with the reinforced insulation requirements
of DIN IEC 65/VDE 0860/08.86.
LTC 8557 Series | Instruction Manual | Table of Contents
Table of Contents
Important Safeguards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
1 UNPACKING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
2 SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
3DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
3.1 Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
4INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7