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Pro-face GP-2500 User Manual Page 27

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Chapter 2 - Specifications
GP-2400/2500/2600 Series User Manual
2-8
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.
#18 (CSB) <—> #19 (ERB)
#21 (CSA) <—> #22 (ERA)
• When connecting the RS-422 cable and the #9 (TRMX) and #10 (RDA) points, a
termination resistance of 100
ΩΩ
ΩΩ
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.
Serial Interface (COM2)
This interface is used for RS-232C data transfer, and uses a plug-type connector.
Recommended Connector: Dsub9pin socket XM2D-0901<made by
OMRON>
Recommended Cover: Dsub9pin cover XM2S-0913<made by OMRON>
Jack Screws: XM2Z-0073<made by OMRON>
Since Pin#9(RI/VCC) is unprotected, be sure to keep the output current
in the rated range.
5
1
6
9
(D-Sub 9pin male)
Pin Assignments Pin No. Signal Name
Signal
Direction
Condition
1 CD Input Carrier detect (RS-232C)
2 RD Input Receive data (RS-232C)
3 SD Output Send data (RS-232C)
4 ER Output Enable receive (RS-232C)
5 SG Signal Ground
6 DR Input Data Set Ready (RS-232C)
7 RS Output Request Send (RS-232C)
8 CS Input Clear send (RS-232C)
9 RI/VCC Input/Output
Ring Indicate (RS-232C)
+5V+
5% 0.25A
Use inch type screws (#4-40UNC) as set screws.
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