Omron NT-series Operation Manual page 78

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Note
Connecting to the Host Computer
Caution
Connec- Signal name g
tor pin # i
1 Frame ground
2 Send data
3 Receive data
4 Request to send
5 Clear to send
6 +5V 150mA Max. (ST211(B)-EV
100mA Max. (ST121(B)-EV
9 Signal ground
1. FG is not connected internally in the NT600S.
2. Unlisted pins are not used.
For cable parts and the wiring method, refer to APPENDIX E Method for Making
the Cable for Connection to the PC/Host (page 264).
Use a cable that is compatible with the RS-232C connector of the host to connect
the NT600S and the host.
In the example shown here, the cable connects the 9-pin connector of the NT600S
and 25-pin connector of the host. If the host has a 9-pin RS-232C connector, use
an RS-232C cable with 9-pin connectors at both ends.
NT600S
9-pin
Host Interface connector
connector
(RS-232C, 9-pin type)
RS-232C cable

Turn off the NT600S power supply when connecting or disconnecting connec-
tors.

After connecting a communication cable, always secure it with the screws.

Check that the current capacity of the equipment to be supplied is within 150 mA
before using the +5V output of pin No.6. Otherwise, the product may malfunc-
tion.
The current capacity of +5 V output of NT600S is:

+5 V 5%, 150 mA max. with ST211(B)-EV


+5 V 5%, 100 mA max. with ST121(B)-EV
Abbrevi-
Signal direction
ation i
Input
FG ---
SD (TXD) ---
RD (RXD) Yes
RS (RTS) ---
CS (CTS) Yes


) +5 V ---


)
SG (GND) ---
25-pin
connector


, and


.
Section 2-8
Output
---
Yes
---
Yes
---
Yes
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