Com.1 And Com.2 Ports (9 Pins) - Panasonic FP2 Manual

FP2−CCU
2.1.3

COM.1 and COM.2 Ports (9 Pins)

These are used to connect the RS232C connector of an RS232C device such as a
personal computer or display panel, using a shielded cable.
Pin layout
Pin No.
(9−pin internal)
Name
1 Frame Ground
2 Send Data
3 Receive Data
4 Request to Send
5 Clear to Send
6 (Not used)
7 Signal Ground
8 Receive Carrier Detect
9 Equipment Ready
Names and Functions of Parts
2.1 Names and Functions of Parts
Mnemonic Signal direction
FG —
SD Unit → External device
RD Unit ← External device
RS Unit → External device
CS Unit ← External device
— —
SG —
CD Unit ← External device
ER
Unit → External device
2 − 5