background image

5. Route and connect the biphase connector as

shown in FIGURE 19.

Figure 19  Wire Routing & Connection

6. DAISY CHAIN Wiring: Connect the (

+)

of each

of the cables by inserting them both into the (+)
terminal on the terminal block. Connect the (

–)

of each of the cables by inserting them both into
the (–) terminal on the terminal block. Connect
the GND of each of the cables in a similar 
manner. A 110 OHM RESISTOR MUST BE 
CONNECTED BETWEEN THE BIPHASE (+)
AND (–) TERMINALS ON THE LAST CAMERA.

NOTE:

Cameras connected to an AutoTracker cannot be

used in a daisy chain.

4.7.3

CONNECTING THE AutoTracker (Optional)

If the camera will be used with the Optional stand-alone
AutoTracker, connect the Power, Video, and Biphase data to
the AutoTracker first. Then connect the RS-232, Power, and
Video outputs of the AutoTracker to the camera. (Refer to
the AutoTracker INSTRUCTION BOOK for more details.)

4.7.4

CONNECTING THE RS-232 / RS-485 SIGNAL
CABLE

Not applicable if data input is via biphase codes (see
SECTION 4.7.2) or if connected to an AutoTracker.

1. Unplug the connector (FIGURE 18) from the

backbox.

2. Identify the RxD phase, TxD phase, and signal

GND wires.

3. Connect the RxD phase to the RXD terminal, the

TxD phase to the TXD terminal, and the signal
ground to GND terminal marked GND using a
flat-blade  screwdriver (see NOTES).

NOTES:

1. The shield of the cable should be left unconnected.
2. If the internal switch #2 position is turned ON for

RS-485 operation, RXD functions as DATA (+), and
TXD functions as DATA (–).

4. Route and connect the RS-232 / RS-485 

connector as shown in FIGURE 19.

4.7.5

CONNECTING VIDEO CABLE

Route and connect the video cable to the BNC connector
(FIGURE 19).

4.7.6

CONNECTING THE ALARM INPUTS AND
RELAY OUTPUT

If the Alarm Inputs or the Relay Output are being used,
connect them per FIGURE 20.

1. The Alarm Inputs must be connected to a dry

contact. To activate an Alarm Input, the dry 
contact must change state between the 
appropriate Alarm Input and the Alarm Ground,
Pin #8. For example, to activate Alarm Input #1,
the dry contact must change state between 
Pins 7 & 8.

2. Alarm Relay Output Specification: 30VAC at 

2 Amps; 60 Watts MAX.

Figure 20  Alarm Connector

NOTE:

Push all excess cable through the conduit fitting or

strain relief bushing. This will ensure that excess wire in
the backbox will not interfere with the proper insertion of
the camera module.

Installation

EN

© 2003 Bosch Security Systems

Page 12 of 16

P102 Biphase / RS-232 / RS-485

P101 Power Connector

Video Connector

Alarm Connector

GND A1

A2

A3

A4

NC COM NO

8

7

6

5

4

3

2

1

ALARM CONNECTOR

ALARM GROUND

ALARM INPUT #1

ALARM INPUT #2

ALARM INPUT #3

NORMALLY OPEN

RETAINING SCREW

RELAY COMMON

NORMALLY CLOSED

ALARM INPUT #4

Summary of Contents for LTC 7420C

Page 1: ...LTC 7490 20C AutoDome Series Ceiling Mount Backbox Modules Installation Instructions Security you can rely on EN ...

Page 2: ... the manufacturer or have the same character istics as the original part Unauthorized substitutions may result in fire electric shock or other hazards 9 Safety Check Upon completion of any service or repairs to this unit ask the service technician to perform safety checks to determine that the unit is in proper operating condition 10 Coax Grounding If an outside cable system is connected to the un...

Page 3: ...s The exclamation point within an equilateral triangle is intended to alert the user to presence of important operating and maintenance servicing instructions in the literature accompanying the appliance Attention Installation should be performed by qualified service personnel only in accordance with the National Electrical Code or applicable local codes Power Disconnect Units with or without ON O...

Page 4: ...enden Dokumentation hinweisen Achtung Die Installation darf nur von qualifiziertem Wartungspersonal gemäß dem National Electrical Code oder den gültigen örtlichen Vorschriften durchgeführt werden Abtrennen des Netzkabels Die Spannungsversorgung zu Geräten mit und ohne Ein Aus Schalter ist dann hergestellt wenn das Netzkabel an eine Netzsteckdose angeschlossen ist Das Gerät ist jedoch nur betriebsb...

Page 5: ...ereenstemming met de National Electrical Code of de daarvoor plaatselijk geldende richtlijnen Stroomonderbreking Apparaten met of zonder AAN UIT schakelaars staan onder spanning op het ogenblik dat de voedingskabel in de voedingsbron wordt bevestigd dergelijke apparaten zijn echter alleen bedrijfsklaar als de AAN UIT schakelaar in de stand AAN is geschakeld De netvoedingskabel is de hoofdstroomond...

Page 6: ...o de Electricidade Nacional ou outros regulamentos locais Corte da corrente As unidades com interruptores ON OFF ligar desligar são alimentadas sempre que o cabo de alimentação estiver ligado à corrente No entanto a unidade só fica operacional quando o interruptor ON OFF está na posição ON ligado O cabo de alimentação é o principal meio de desligar qualquer uma das unidades da corrente Remoção da ...

Page 7: ... 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 a...

Page 8: ...odes Figure 2 AutoDome Assembly 4 3 Ceiling Mounting 4 3 1 BACKBOX MODULE MOUNTING IN SUSPENDED CEILING Mount the backbox in a suspended ceiling grid using the existing ceiling tile as follows 1 Locate the bracket assembly in the desired location FIGURE 3 Loosen the securing screws see FIGURE 5 on the base bracket assembly enough to retain the suspension bars during handling but allowing for adjus...

Page 9: ... only applies to a special mode to download new firmware Figure 8 S105 Dip Switch and Address Switch 4 5 Backbox Module Mounting Mount the backbox into the installed bracket assembly as follows 1 Verify that the edge of the hole will support the unit If the edge is uneven or slightly too large attach the appropriately colored white black mounting ring as shown in FIGURE 9 and FIGURE 10 If the back...

Page 10: ...Installed Backbox 3 Tighten the two 2 flexible clamp screws DO NOT OVER TIGHTEN FIGURE 13 Figure 13 Securing the Backbox 4 7 Connecting Power Signal and Video CAUTION Before proceeding disconnect the power from the cable to be installed into the unit Be sure that the unit is of the proper line voltage type 24 VAC for line power being used 1 Route the wires through the backbox connector opening FIG...

Page 11: ... 4 7 2 CONNECTING BIPHASE SIGNAL CODE 1 If the camera is being connected to an AutoTracker go to SECTION 4 7 3 2 Unplug the connector FIGURE 18 from the backbox Figure 18 Biphase RS 232 RS 485 Connector 3 Identify the phase phase and GND wires Use only twisted shielded pair Belden 8760 or equivalent 4 Connect the plus phase to the terminal the minus phase to the terminal and the shielding ground o...

Page 12: ...ND terminal marked GND using a flat blade screwdriver see NOTES NOTES 1 The shield of the cable should be left unconnected 2 If the internal switch 2 position is turned ON for RS 485 operation RXD functions as DATA and TXD functions as DATA 4 Route and connect the RS 232 RS 485 connector as shown in FIGURE 19 4 7 5 CONNECTING VIDEO CABLE Route and connect the video cable to the BNC connector FIGUR...

Page 13: ...way from the camera While using proper eye protection clean the dome by using clean compressed air from a spray can and microwave safe paper towels and reseat the dome CAUTION Do not remove camera from pan tilt Remove the entire receiver driver pan tilt and camera assembly from the AutoDome system to prevent damage to the flexible cable and connector Maintenance Component Replacement EN 2003 Bosch...

Page 14: ...EN 2003 Bosch Security Systems Page 14 of 16 ...

Page 15: ...EN 2003 Bosch Security Systems Page 15 of 16 ...

Page 16: ...26 3270 Fax 1 717 735 6560 Bosch Security Systems B V P O Box 80002 5600 JB Eindhoven The Netherlands Tel 31 40 278 1222 Fax 31 40 278 6668 Bosch Singapore Pte Ltd 620A Lorong I Toa Payoh Singapore 319762 Republic of Singapore Tel 65 350 1859 Fax 65 356 9202 Printed in USA 3935 890 11713 03 12 March 21 2003 ...

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