SCT-CTX-Bosch-485-Pelco Bosch RS-485 to Pelco Coaxitron Code

SCT-CTX-Bosch-485-Pelco Bosch RS-485 to Pelco Coaxitron Code
SCT-CTX-Bosch-485-Pelco
Bosch RS-485 to Pelco Coaxitron Code Translator
The Code Translator receives Bosch RS-485 camera control code and converts it into coaxitron control
code for a single Pelco camera.
Configuration Switches
Switch 1: Unassigned
Up:
Down:
Switches 2&3: RS-485 baud rate
2 Down 3 Down
2400
2 Up
3 Down
4800
2 Down 3 Up
9600
2 Up
3 Up
19.2k
Switch 4: Unassigned
Bosch RS-485
Address Switches
Rx
Indicator
Tx
Indicator
Error
Indicator
Video
Indicator
Up:
Down:
The valid range is
001~999
Flashs when
any data is detected on the
input.
Flashs when
coaxitron data
is sent up the
video coaxial
cable.
Flashes for
input code errors. Lights
solidly for invalid address
Illuminates
when video
sync signal
is detected.
Up:
Down:
Switch 5: Unassigned
Switch 6: Coaxitron Test Pattern
Up:
Test On
Down:
Test Off
n.c.
The removable mounting
clip can be snapped onto a
din rail or screwed to a
panel or wall.
Pwr
+_
Pwr
RS-485
Data In
Connect power to the Pwr
inputs. Do not connect
power wires to the Gnd.
Removable edge connector.
Insert a small screwdriver in
the upper slot to force open the
wire clamp. Push all the way in
to open fully. Place stripped
wire end(s) in the open clamp
and withdraw screwdriver.
High impedance looping
coaxial video connectors.
SPECIFICATIONS
Size:
Weight:
Power:
Environmental:
4.5" x 3.5" x 1.25"
0.5 lb
9Volt to 15Volt AC or DC at 75ma
Indoor use only
Sennetech, Inc. 6455 W. Bath Rd. Perry, MI 48872 U.S.A.
www.sennetech.net
Ph (517) 675 1150
Fax (517) 675 1151
INSTALLATION
Insert the code translator in the video coaxial cable between the camera and the matrix. The video
inputs are a high impedance loop so either can be in or out.
Connect the RS-485 control wires to the code translator's RS-485 in connectors. The baud rate and
parity must be set to match the controller's settings. The switches can be changed with power applied
and the changes take effect immediately.
Set address selector switches to the same number the controller is sending for this camera.
Video
Camera
SCM-CTX
Video
RS-485 IN
Pwr
Video
Video
Matrix
or
DVR
or
Video Encoder
RS-485 Control
NORMAL OPERATION
The video indicator will light when there is video present from the camera on the coaxial cable.
The Rx indicator will light when there is any data on the RS-485 input. If it is recognized as valid data
and the received address matches the switch settings, coaxitron data will be sent up the video cable
to the camera and the Tx indicator will light.
TROUBLESHOOTING
No Video indicator: proper termination of the video cable is important for reliable coaxitron operation.
The cable should be terminated with a single 75W resistor.
Only Rx indicator flashes when data is sent, no Error or Tx indicator: wrong address.
Both Rx and Error indicators flash, possible causes:
Controller sending other than Bosch camera control data.
Controller sending Bosch data but the baud rate settings do not match.
Incorrect wiring. Connect controller's Tx+ and Tx- to RS-485 input + and - respectively.
Error indicator on solidly
Invalid address setting - valid range is 001~999.
Input data wires reversed
April 2016
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