Chapter 2 Specifications
2-9
Pin
No.
RS-485
Signal Name
Direction
Meaning
1
DATA +
Input / Output
Send/Receive Data (+)
2
DATA -
Input / Output
Send/Receive Data (-)
3
NC
-
No Connection
4
NC
-
No Connection
5
GND
-
Signal Ground
6
NC
-
No Connection
7
NC
-
No Connection
8
NC
-
No Connection
9
NC
-
No Connection
FG
FG
-
Frame Ground (Common with SG)
• Be sure to connect pin number 5 (GND) of COM1, COM2 (RS-232C) to the host
unit’s Signal Ground terminal.
• Be sure to confirm what settings will be used by the other device and set the slide
switches accordingly. Failure to do so can result in a unit malfunction or damage.
• Whenever changing the PS-B switches, be sure to first turn the PS-B’s power
supply OFF. Failure to do so can cause a PS-B malfunction.
• Connect the FG terminal line to the shell.
• FG and SG terminals are internally connected in the PS-B. When connecting to
another device, be sure not to create an SG shorting loop in your system.
Содержание PS-3000B Series
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