SCT -100-Pelco-Visca
Pelco RS-422 to Visca RS-232 Camera Code Translator V2.0
The code translator converts Pelco RS-422 camera control code to Sony Visca RS-232 code for a
single Sony camera.
Input Pelco "D" or "P" code at 2400, 4800 or 9600 baud is detected automatically .
Visca RS-232 output is selectable from 4800 baud to 38400 baud.
A test mode sends a continuous square movement pattern to the camera so the wiring and addressing
between the translator and the camera can be checked without a Pelco controller.
Configuration Switches
Switches 1 &2: Visca Baud
1 Off 2 Off 4800
1 On 2 Off 9600
1 Off 2 On 19 . 2 k
1 On 2 On 38.4K
Switch 3: Set Camera Address
On: Send "set address cmd"
Address Selector
Selects the camera
address. The valid
address range is
001~256
Rx
Indicator
Flashes when
there is data on
the input lines.
Error
Indicator
Flashes on
input error.
Status
Indicator
Lights if an
invalid address
is selected.
Tx
Indicator
Flashes when
Visca output
code is sent.
Off:
Switch 4: Reverse Pan/Tilt
On: Reverse P/T Directions
Off: Normal P/T Directions
Switch 5: Unassigned
On:
Off:
Switch 6: Test Mode
On: On
Off: Off
The removable mounting
clip can be snapped onto a
din rail or screwed to a
panel or wall.
RS-422
Data
Input
Connect power to the PWR
inputs. Do not connect
power wires to the Gnd.
RS-232
Data
Output
Removable edge connector
Insert a small screwdriver in
the upper slot to force open
the wire clamp. Push in all
the way to open fully. Place
stripped wire end(s) in the
open clamp and withdraw
screwdriver.
SPECIFICATIONS
Size: 4.5" x 3.5" x 1.25"
Weight: 0.5 lb
Power: 9~15Volt AC or DC at 75ma
Environmental: Indoor use only
www.sennetech.net
Sennetech, Inc. 6455 W. Bath Rd. Perry, MI 48872, U.S.A. Ph (517) 675-1150 Fax (517) 675-1 151
NOTES
The configuration switches on not read only at power up, any changes take effect immediately .
Addressing
The address switches set the Pelco address for the camera, valid range is 001~256.
The output is always address to Sony camera #1.
Switch 3 - Set Camera Address Command.
When this switch is changed from Off to On, a "Set Camera Address" command will be sent.
Switch 4 - Reverse Pan/Tilt
When this switch is On, Pan & Tillt directions are reversed from normal; left is right and up is down.
Baud Rates
Switches 1 & 2 set the Visca output baud rate from 4800 baud to 38400 baud.
Indicators
The Rx indicator will flash when there is data on the input.
If it stays on, the input wires are probably reversed.
The Error indicator will flash if the input code is not recognized as valid Pelco code.
The Status indicator will light if the address switches are not set to a valid address (1~249).
The Tx indicator flashes for each Visca packet sent.
OPERA TION
PTZ
The code translator converts pan, tilt, and zoom commands directly .
Focus
Focus commands wil have an effect only if the camera is set to Manual Focus Mode.
Iris
Iris commands will have an effect only if the camera is set to Manual Iris Mode.
The iris will open or close incrementally each time the Open or Close command is sent.
Presets
Pelco presets 0~15 are converted to Visca presets 0 ~ 15. (Some cameras support fewer presets.)
There are two ways to change the camera operating mode using Aux commands or Recall Preset
commands according to the following table.
Pelco Cmd Visca Cmd Pelco Cmd Visca Cmd
Aux 2 On One Push Auto Focus
Aux 3 Off Manual Focus Mode Aux 3 On Auto Focus Mode
Aux 4 Off Manual Iris Mode Aux 4 On Auto Iris Mode
Preset 20 One Push Auto Focus
Preset 21 Manual Focus Mode Preset 22 Auto Focus Mode
Preset 23 Manual Iris Mode Preset 24 Auto Iris Mode
April 2013
Loading...