103
9−4−4. Pin layout and wiring of Connector
(1) Pin configuration
SDA
Differential output(+)
SDB Differential output(−)
RDA Differential input(+)
RDB Differential input(−)
TRM. Terminator
S.G. Signal ground
● The TRM. is a terminal resistance. Connect the terminal resistance
by shorting between the TRM. and RDM. at the last end of the host
looking from the host(personal computer, sequencer and so on).
● For the connection, we recommend to apply twisted pair wires.
(2) Example of connection
1
1to1
RS−422
SDA
SDB
RDA
RDB
RDA
RDB
Host
SDA
SDB
CSD−701B
Connect the terminal resistance at the
section.
2
1ton
RS−422
Host
RDB
SDB
RDA
SDA
RDB
SDB
RDA
SDA
RDB
SDB
RDA
SDA
RDB
SDB
RDA
SDA
RDB
SDB
RDA
SDA
CSD−701B CSD−701B CSD−701B
CSD−701B
Connect the terminal resistance at the
section.