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1 INTERFACE SPECIFICATIONS
Data format
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
service center.
Termination settings
When connecting multiple devices, you must make
termination settings on both end devices.
z Set the RS-485 termination switch of both end devices
to ON.
z Be sure to set the RS-485 termination switches of all
devices in between (devices other than the first and last
devices) to OFF.
z If you don’t make the correct termination settings, the
incorrect data will be transmitted to each device.
Example
RS-485 specifications
Mode Asynchronous
Character length 8 bits
Data transmission speed 2400, 4800, 9600, 19200 bps
Parity check None
Stop bit 1 bit
RS-485 termination switch settings
ON
OFF
ON
OFF
ON
OFF
System controller
Termination
switch
Digital video recorder
RS485
termination
Termination
switch
Time – lapse VCR
e00_l8hbe_xe_7.book Page 99 Tuesday, April 27, 2004 10:35 AM