Bosch Appliances LTC 8785 4INSTALLATION, 4.1Power, 4.2Procedure, 4.3Cover Removal, En

LTC 8785 Series Instruction Manual Installation EN 8

4INSTALLATION

4.1Power

Model No.1	Rated Voltage	Voltage Range Power2
LTC 8785/60	120 VAC, 50/60 Hz	108 to 132	12 W
LTC 8785/50	220-240 VAC,50/60 Hz 198 to 264		12 W

1These units may be supplied with grounded power cords;

grounding should not be defeated.

2Nominal power at rated voltage.

4.2Procedure

Refer to ILLUSTRATIONS as necessary per the following instructions.

If possible, install the LTC 8785 Series close enough to the existing LTC 8568/00 Signal Distribution Unit

(or LTC 8569 Series Code Merger) so that the supplied 2 meter (6 ft) data cable will reach one of the outputs of the LTC 8568/00 unit. The data output cables corresponding to the older TC8561 Series Receiver/drivers will need to be removed from the existing LTC 8568/00 and connected to the outputs

of the LTC 8785 Series. The older LTC 8568/00 mating connector blocks can be connected directly to the connectors on the rear panel of the new LTC 8785 Series. If necessary, the shielded-twisted pair cables can be removed from the older connectors and wired directly to the new connectors.

If these units are placed at a more distant location, the data output cables for the receiver/drivers will need to be extended or re-routed appropriately to the new site.

The data input to the LTC 8785 Series are made to the 9 pin D-connector on the rear panel. The supplied data cable must be prepared so it can be used to connect to an output of the existing LTC 8568/00 Signal Distribution Unit.

•Prepare the data cable by cutting off the end of the cable containing the male 9-pin D- connector.

•Locate the three conductors corresponding to Data + (pin 1), Data - (pin 2), and Shield (pin 3).

•Strip the ends of the three conductors approximately 6 to 7 mm (1/4 in) so they can be connected to one of the output terminal blocks of the existing LTC 8568/00 unit.

•Connect the conductor corresponding to pin 1 to a “+” terminal of the LTC 8568/00 output; pin 2 connects to a “-” output, and pin 3 to a “S” output. If necessary, a shielded-twisted pair cable can be used to extend the data line between an output of the LTC 8568/00 and the input to the LTC 8785 Series.

•Install the AC power cord to the appropriate power source. The POWER LED on the code converter unit’s front panel should light when power is applied.

4.3Cover Removal

WARNING: Removal of the cover should only be performed by qualified service personnel-- not user serviceable. The unit should always be unplugged, before removing the cover and remain unplugged while the cover is removed.

4.4Mounting Options

4.4.1 Rack Mount

The units are supplied from the factory in an enclosure suitable for rack mounting in an EIA 19-inch rack. The enclosure is one EIA standard rack width (19 in) by two rack units high (3 1/2 in). Peel off the four rubber feet located on the bottom of the enclosure before installing it into a console.

4.4.2 Desk Top Mount

If the unit is not going to be rack mounted, the enclosure’s mounting ears should be removed. The cover of the unit must be removed before access to the mounting ears is possible. Removal of the cover should only be performed by qualified service personnel. The unit should always be disconnected from the AC power source before removing the cover.

The top cover is fastened to the case by four screws located on the rear of the unit. Once the screws have been removed, the cover slides back and off the unit. Remove each mounting ear by removing the screw holding the mounting ear to the enclosure chassis. See Figure 1.

Bosch Security Systems 19 April 2004