User manual

LT Series User Manual 2–7
Chapter 2 – Specifications
Pin Assignments Pin # Signal Name Condition
1 FG Frame Ground
2 SD Send Data (RS-232C)
3 RD Receive Data (RS-232C)
SIO
4 RS Request Send (RS-232C)
5 CS Clear Send (RS-232C)
6 NC No Connection
7 SG Signal Ground
8 CD Carrier Detect (RS-232C)
9 TRMX Termination (RS-422)
10 RDA Receive Data A (RS-422)
11 SDA Send Data A (RS-422)
12
*1
RESERVE Reserved
13
*1
RESERVE Reserved
14 VCC 5V ±5% Output 0.25 A
15 SDB Send Data B (RS-422)
16 RDB Receive Data B (RS-422)
17 NC No Connection
18 CSB Clear Send B (RS-422)
19 ERB Enable Receive B (RS-422)
20 ER Enable Receive (RS-232C)
21 CSA Clear Send A (RS-422)
22 ERA Enable Receive A (RS-422)
23 NC Not Connected
24 NC Not Connected
25 NC Not Connected
1
13
25
14
(D-Sub 25-pin female)
1 The #12 and #13 pins are RESERVED. Do NOT connect to these pins.
Either the RS-232C or RS-422 interface connects the LT to the external device.
Recommended Parts:
Connector: Dsub25pin plug XM2A-2501 (OMRON Corp.)
Cover: Dsub25pin cover XM2S-2511 (OMRON Corp.)
Jack Screws XM2Z-0071 (OMRON Corp.)
Use rough metric type M2.6x0.45 p threads used to secure
the cable’s set screws.
Cable: CO-MA-VV-SB5PX 28AWG (HITACHI Cable, Ltd.)
2.3 Interface Specifications
2.3.1 Serial Interface (Type C)
To confirm the connection specifications for your external device,
refer to the LT Editor Device Connection Manual (included with the
LT Editor software), the GP-PRO/PBIII Device/PLC Connection
Manual (included with the C-Package software).