Omron NT30C-ST141-E Operation Manual page 285

Making the Cable to Connect to the PC
Connecting an NT30/30C to a CVM1/CV-Series Host Link Unit
S CVM1/CV-series Host Link Unit connector specifications
- Applicable Host Link Unit:
- Electrical characteristics:
- Signal direction:
Communications Port 1 (25-pin Connector)
1
14
25
13
Communications Port 2 (9-pin Connector)
1
6
9
5
S Wiring Connections
CVM1/CV-series Host Link Units have two types of connector, which must be wired differently.
The NT30/30C does not use pin 4 (RS) or pin 5 (CS). Either short the RS and CS pins of the PC connector togeth-
er or set the CTS setting selector switch at the rear face of the Host Link Unit to "0V" (see ∗ in the figure).
Connect the cable shield to the connector cover and pin 1 at the Host Link Unit end of the cable only.
274
CV500-LK201
Complies with EIA RS-232C
Signal input and output is relative to the PC.
Connector Pin Connector Pin
No.
Connector cover Frame ground
1 Frame ground
2 Send data
3 Receive data
4 Request to send
5 Clear to send
7 Signal ground
8 Carrier detected
14 Optical connector +5V
20 Data terminal ready
Connector Connector
Pin No.
Connector cover Frame ground
2 Send data
3 Receive data
4 Request to send
5 Clear to send
9 Signal ground
Signal Name Signal Name Abbreviation Abbreviation
FG
FG
SD (TXD)
RD (RXD)
RS (RTS)
CS (CTS)
SG (GND)
CD (DCD)
+5V
ER (DTR)
Signal Name Signal Name Abbreviation Abbreviation
FG
SD (TXD)
RD (RXD)
RS (RTS)
CS (CTS)
SG (GND)
Appendix E
Signal Direction
Input Output
-- --
-- --
f
f
f
f
-- --
f
f
f
Signal Direction
Input Output
-- --
f
f
f
f
-- --