Interface Specifications - Sanyo MPX-CD92P Instruction Manual

INTERFACE SPECIFICATIONS

RS232C (9-pin connector layout)
Pin No. Signal Function
1 –
2 RXD Data reception
3 TXD Data transmission
4 –
5 GND Ground
6 –
7 RTS Request to send
8 –
9 –
DATA FORMAT
Mode Asynchronous
Character length 8 bits
Data transmission speed 2400, 4800, 9600, 19200 bps
(set in the (SERIAL SET) menu)
Parity check None
Stop bit One bit
TRANSMISSION PROTOCOL
The transmission is based on 1 byte units. After the computer
has transmitted 1 byte, it will wait for an answer from this unit,
then send the following byte of data.
The command ON (F6) is sent to start, and the command OFF
(F7) is sent to finish. This unit will receive the commands, and
will reply to each command by ACK (0A). (Refer to "COMMAND
TABLE 4" on page 52.)
1 2 3 4 5
6 7 8 9
Signal direction
– –
Computer → Multiplexer
Multiplexer → Computer
– –
–
– –
Multiplexer → Computer
– –
– –
RS-485 (RJ-11 connector layout)
6 5 4 3 2 1
Pin No. A terminal signal
1
2
3
4
5
6
A: Non-inverting driver output/receiver input
B: Inverting driver output/receiver input
Transmission line: 2 conductors
Transmission system: Half duplex
DATA FORMAT
Mode
Character length
Data transmission speed
Parity check
Stop bit
TRANSMISSION PROTOCOL
A proprietary protocol (SSP: Security Serial Protocol) is used.
Operates using a Sanyo controller or a controller using
containing this protocol.
48
B terminal signal
Not used Not used
Not used Not used
A signal B signal
B signal A signal
Not used Not used
Not used Not used
Asynchronous
8 bits
2400, 4800, 9600, 19200 bps
(set in the (SERIAL SET) menu)
None
One bit
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