Toshiba GX9 - CNU1 and CNU2 Pinout; CN3 Pinout

26 GX9 ASD Installation and Operation Manual
Figure 8. Control Board of the GX9 ASD.
CNU1 and CNU2 Pinout
CN3 Pinout
CN3 is used for RS232/RS485 serial communications.
Pin #
CNU1 Pinout
(Control Board)
Pin #
CNU2 Pinout
(Control Board)
1P24 1P24
2 Gnd 2 Gnd
3 Tx (-) 3 Rx
4 Rx (+) 4 Gnd
5 Rx (-) 5 Tx
6 Tx (+) 6 Gnd
7 RS232/RS485 7 Open
8 Gnd 8 Gnd
Pin Number
CNU3 Pinout
(Control Board)
1 RS232/RS485 Signal +
2 RS232/RS485 Signal -
3 RS232/RS485 Signal Gnd
4Shield
25-pin D-type connector.
Connects to the Terminal
Board (CN7).
EOI Connect-
RS232/RS485
signal I/O
(CNU1)
TTL I/O (CNU2)
CNU4
JP1 Jumpers - Half-/Full-Duplex Selection
RS232/RS485
signal I/O (CN3)
ASD-NANOCOM
CN2
CN8
Sink/Source
Switching
J4
J5
Option Board
Interface (CN3).