Bosch Appliances LTC 8557 Series instruction manual Installation, Shielded twisted pair

LTC 8557 Series Instruction Manual Installation EN 7

4INSTALLATION

ATTENTION: Installation should be performed by qualified service personnel only in accordance with the National Electrical Code or applicable local codes.

The LTC 8557 Series kits consist of two identical junction boxes, a power supply, a barrel plug cord, and a 3 meter (10 ft) keyboard cable. Install the kit as shown in the drawing below by performing the following steps:

1.Each junction box may be surface-mounted using the four screw holes provided in the base flange of the case. The remote junction box should be mounted within 3 meters (10 ft) of the remote keyboard and the local junction box should be mounted within 3 meters (10 ft) of the main CPU bay.

2.Connect the 3 meter (10 ft) cable supplied with the keyboard between the keyboard and the remote junction box.

3.Up to 1.5 km (5000 ft) of customer supplied 0.5 mm2 (24 AWG) shielded-twisted pair (Belden 9841 or equivalent) may be run between the two junction boxes. Connections to the junction boxes are made to three of the four screw terminals as follows:

Terminal	Remote Keyboard	Local CPU
Number	Junction Box	Junction Box
1	SPARE	SPARE
2	+	-
3	-	+
4	SHIELD	SHIELD

NOTE: Data Reversal on pin-2 and pin-3 between junction boxes.

4.Connect the 3 meter (10 ft) cable supplied with the kit between the junction box and the main CPU bay. Verify junction box power LED indicator lights.

5.Connect the power supply to the junction box at the remote keyboard site. If necessary, attach either lead (the junction box and keyboard are not polarity sensitive) of the barrel plug cord to the positive terminal of the power supply. Attach the other lead of the barrel plug cord to the negative terminal of the power supply. Plug the barrel plug into the junction box's barrel jack. Plug the power supply into the appropriate power source. Verify junction box LED indicator lights and that the keyboard is active.

Power Pack Supplied with LTC 8557
(Connect power cable direct to junction
box or to back of IntuiKey keyboard)				LTC 8557 series
		OR		junction box	Up to 1.5 km (5000 ft) of user
				2
					supplied 0.5mm2 (24AWG)
			Cable supplied	3	shielded twisted pair
				4
					(Belden 9841 or equivalent)
			with keyboard
		BOSCH
Prod		Mon
Clr		Shot
1	2	3
4	5	6
7	8	9
0

LTC 8557 series
junction box	Cable supplied
2
	with LTC 8557
3
4
Video Management System	BOSCH
	POWER

ALLEGIANT SERIES SWITCHER/CONTROLLER, DIVAR DIGITAL VIDEO RECORDER, OR SYSTEM4

INTUIKEY SERIES KEYBOARD SERIES MULTIPLEXER

Figure 1 Typical Remote Keyboard Configuration

Bosch Security Systems 29 March 2004