Bosch LTC 5136/61 Instruction Manual download pdf (Page 9)

Bosch Security

Systems

| 08 May

2013

LTC 5136 Series |

Instruction Manual

| Installation

4.4 Installation Using an RS-232 Data

Transmission Link to a

Biphase

Camera Site (See Figure

In this

application,

the RS-232 data that is

generated

by the

Controller

connected directly

to an

232

transmission

link (fiber optics,

microwave, dial-up

phone

modems, etc.). The RS-232

transmission link

must be able to support an RS-232

simplex

transmission

rate of 9600 baud. At the other end of

the

RS-232

transmission

link, the RS-232 signal

converted

into

Allegiant

biphase protocol, using

the

supplied

interface

unit. The biphase data is

then

connected

to the

AutoDome

cameras or

Allegiant

receiver/driver units.

Install one of the junction boxes supplied in

the

LTC 8557 Series Kit (ordered

separately)

in a

location

close enough to the

Controller

unit so that the

supplied

3 m (10 ft) data cable can be used. If desired, four

holes

are

provided

for

mounting

the LTC 8557

eries

junction

box to a flat surface. The power supply

(to

power the

Controller)

should also be located near

the

LTC 8557 Series junction box.

Connect

the

bayonet

style connector

of the power supply cable into the

jac

located on the side of the junction box. If the

power

supply cable must be

attached

to the power supply,

the

polarity

is not

important;

the

Interface

Unit is

not

polarity sensitive.

Plug the power supply into a

suitable

AC power

source.

Connect

the supplied 3 m (10 ft) data cable with

two

RJ-11

connectors, between

the

Controller

unit and

the

junction box. The

orientation

is not

important

either

end may be

connected

to either

device.

Connect

appropriate

length of cable (not

supplied

)

suitable for use with RS-232

signals, between

the LT

8557 Series junction box and the RS-232

transmission

device.

If the

distance between

the box and device

much over 20-30 m (60-90 ft), the use of

user-supplied

short haul modems or other RS-232 line

extender

devices

may be required. These

devices

must be able

support an RS-232

simplex transmission

rate of

9600

baud.

The LTC 8557 Series junction box

provides a

removable

screw

terminal

block for the

data

connections.

The

terminal

block has four

connections

marked 1, 2, 3, & 4. See Figure 2, Junction

Box

Supplied with LTC 8557 Series

Kit.

Pins 1 and 2 are not used. Pin 3 is the

ontroller’s

RS-232 TX output, and Pin 4 is the Signal

Ground

connection.

Be sure to use cable suitable for

232

signals. Connect

the wire from

terminal

3 to the

connection

of the RS-232

transmission device.

Respectively,

connect the wire from

terminal

4 to

the

data ground

connection.

At the camera side of the RS-232

transmission device,

install the

interface

unit in a

convenient

location

where

it can easily be

connected

to the

transmission device.

NOTE: The

interface

unit is rated for indoor use

only

If desired, use the four holes

provided

to mount

the

box to a flat

surface.

Connect

the

bayonet

style

connector

of the

power

supply cable into the jack located on the side of

the

interface

unit. If the power supply cable must

attached

to the power supply, the

polarity

not

important;

the

Interface

Unit is not

polarity sensitive.

Plug the power supply into a suitable AC

power

source.

Connect

transmit

wire and a signal ground wire

from

the RS-232

transmission

device to the desired input

the

interface

unit. Either the RJ-11 or the 9-pin D

type

connector

input may be used. Refer to the Data

Converter

Pinouts section for the

appropriate pin

connections.

Next, connect the biphase control code outputs of

the

interface

unit to the data cable.

Typically,

single

camera site

receiver/driver

connected

to a

single

output, but each biphase output of the

interface

unit

rated to handle up to eight (8)

receiver/drivers when

connected

in a daisy

hain

configuration,

to a

maximum

of 1.5 km (5000 ft). For a daisy

hain

connection, the

cable is looped

through

each

AutoDome

camera

receiver/driver

along the way. The last (and

only the

last) unit in the daisy

hain

connection

should

terminated.

All other

receiver/drivers

should have

the

terminating

resistor

removed

when the looping cable

connected.

Connect

shielded

twisted

pair cable (Belden 8760

equivalent) between

the camera site

receiver/

driver

and the biphase output

connections

located on

the

interface

unit. The

removable terminal

blocks

have

three

connections:

(+), (–), and (S [Shield]).

FIGURE 1,

Interface

Unit Supplied with LTC

5136

Select and

maintain

a wire color

convention

avoid

confusion at the camera

site(s

)

Example:

White to (+), Black to (–), and Shield to (

NOTE: The shield

terminals

of the

interface

unit

are

connected

to the Shield wire of the

cable.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

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