Expansion Serial Interface - Digital Equipment Pro-face GP2000 Series User Manual

When creating your own cable, follow the instructions listed below:
<With RS-422>
• The following pairs of pin #'s must be connected to each other.
• When connecting the RS-422 cable and the #9 (TRMX) and #10 (RDA) points, a
termination resistance of 100Ω Ω Ω Ω Ω is added between RDA and RDB.
• When making a cable for a Memory Link system, be sure to use a 4-wire type.
<With RS-232C>
• Do not use the following pins: 9 (TRMX), 10 (RDA), 11 (SDA), 15 (SDB), 16
(RDB), 18 (CSB), 19 (ERB), 21 (CSA), 22 (ERA).
• The #1 (FG) terminal should only be connected if it is required by the device being
connected to.
• This unit's serial port is not isolated, therefore, it is important that
you connect the SG (Signal Ground) terminals. If this is not done,
the RS422 circuit may be damaged.
• Pin 14 (VCC) DC5V output is not protected. To prevent damage or
unit malfunction, be sure to use only the designated level of current.

2.3.2 Expansion Serial Interface

This interface is used for RS-232C data transfer. The GP-2301 Series unit is not equipped
with this interface. (Plug-Type Connector)
Pin Assignments Pin No. Signal Name
5
1
Recommended Connector: Dsub9pin socket XM2D-0901<made by OMRON>
Recommended Cover:
Jack Screws:
Use inch type screws (#4-40UNC) as set screws.
• Since Pin#9(RI/VCC) is unprotected, be sure to keep the output cur-
rent within the rated range.
• The GP-2301T does not have an expansion serial I/F.
GP-2300/2301 Series User Manual
#18 (CSB) <—> #19 (ERB)
#21 (CSA) <—> #22 (ERA)
1
2
3
4
9
5
6
7
6
8
9 RI/VCC
Dsub9pin cover XM2S-0913<made by OMRON>
Chapter 2 - Specifications
Signal
Direction
CD Input
RD Input
SD Output
ER Output
SG
DR Input
RS Output
CS Input
Input/Output
XM2Z-0073<made by OMRON>
Condition
Carrier detect (RS-232C)
Receive data (RS-232C)
Send data (RS-232C)
Enable receive (RS-232C)
Signal Ground
Data Set Ready (RS-232C)
Request Send (RS-232C)
Clear send (RS-232C)
Ring Indicate (RS-232C)
+5V 5% 0.25A
2-7