Interface Specifications - Sanyo DSR-M810P Manual De Instrucciones

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INTERFACE SPECIFICATIONS

RS-485 specifications
Data format
Mode Asynchronous
Character length 8 bits
Data transmission speed 2400, 4800, 9600, 19200 bps
Parity check None
Stop bit 1 bit
Communication protocol
A proprietary Sanyo protocol (SSP: Security Serial
Protocol) is used. Use of a special controller for operation
is recommended. To obtain this controller, contact a Sanyo
Authorized Service Center.
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RS-485 termination switch settings
Termination settings
When connecting multiple devices, you must make
termination settings on both end devices.
Set the RS-485 termination switch of both end devices
to ON.
Be sure to set the RS-485 termination switches of all
devices in between (devices other than the first and last
devices) to OFF.
If you don't make the correct termination settings, the
incorrect data will be transmitted to each device.
Example
System controller
LAN
MIC IN
IN OUT
AC IN
Digital video recorder
Time – lapse VCR
ON
Termination
switch
OFF
VIDEO
IN OUT
NTSC
PAL
ON
RS485
termination
OFF
ON
Termination
switch
OFF
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