Instruction manual

3. WIRING
IMR01H02-E3
7
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Connection to the RS-232C port of the host computer (master)
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Communication terminal number and signal details
Terminal No. Signal name Symbol
44 Signal ground SG (GND)
45 Send data SD (TXD)
46 Receive data RD (RXD)
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Wiring method
Host computer (Master)
RS-232C
Shielded wire
MA900/MA901
(Slave)
Communication terminals
Number of connection: 1 instrument
SD (TXD)
RD (RXD)
SG (GND)
RS (RTS)
CS (CTS)
*
Short RS and CS within connector.
*
SD (TXD)
RD (RXD)
SG (GND)
44
45
46
The cable is provided by the customer.
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Connection example (For the MA900/MA901 multi-point mode)
Connection with up to 31 MA900/MA901 (slaves) and one host computer (master)
Junction terminals
1 2
MA900/MA901
(Slave)
MA900/MA901
(Slave)
Device address
(Slave address)
Host computer (Master)
RS-422A
or
RS-485
3 4 29 30 31