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INTRODUCTION OPERATION SETTINGS OTHER OTHER OTHER OTHER
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, data
will be distorted and will affect other data, making the
data transmitted to each device incorrect.
Example
RS-485 specifications
Mode Asynchronous
Character length 8 bits
Data transmission
speed
2400, 4800, 9600, 19200 bps
Parity check None
Stop bit 1
RS-485 termination switch settings
ON
1
10
AUDIO
AC IN
ADDRESS
ADDRESS
AUTO/MANUAL
RS485
RS485
REMOTE
CLOCK
NON
ALARM IN
ALARM RESET
ALARM OUT
WARNING OUT
ALL
RESET
FULL OUT
ADJ
REC OUT
ABC C C C
IN
OUT
TERMINATE
12345678
LAN
VIDEO
MIC IN
IN
OUT
IN
OUT
TV SYSTEM
NTSC
PAL
ON
OFF
ON
OFF
12V DC IN
POWER
ON
OFF
RS485
GND
1
0
A
A
B
B
ADDRESS
TERMINATE
123
ON
OFF
System controller
Termination
switch
Digital video recorder
RS485
termination
Termination
switch
Time – lapse VCR
e_dsr_m800.book Page 44 Friday, January 31, 2003 5:45 PM