Microscan MS-890, User Manual, Page: 269 / 308

MS-890 Industrial Automation Scanner User Manual
A-5
Appendices
Host 25-Pin Connector
25-pin D-sub plug
Pin
Host
RS-232
Host and Aux RS-232 Host RS-422/485 I/O
1 Chassis Ground
a
a. Chassis Ground: Used to connect chassis body to earth ground only. Not to be used as power or
signal return.
2 Host TxD Out
3 Host RxD In
4 RTS Aux TxD Out
5 CTS Aux RxD In
6 Output 1 (+) Out
7 Signal Ground
b
b. Signal Ground: Used for communication and signal line grounds only. Not to be used as power or
chassis return.
8 Output 2 (+) Out
9 Trigger (–) In
10 Trigger (+) In
11 N/C
12 Input 1 (+) In
13 RxD (+) In
14 TxD (–) Out
15 No Read/Output 3 (+) Out
16 RxD (–) In
17 Power Ground
c
c. Power Ground: Used for power return only.
CAUTION: If using your own power supply, verify correct connection of power and ground lines.
Incorrect connections or use of Chassis Ground, Power Ground, and Signal Ground lines could
cause equipment failure or software failure.
18 Power + 10 to 28 VDC In
19 TxD (+) Out
20 Output 1 (–) Out
21 Output 2 (–) Out
22 No Read/Output 3 (–) Out
23 Input 1 (–) In
24 New Master (–) In
25 New Master (+) In