Laser beta lasermike LS8000-3 Manuale Utente
LaserSpeed 8000-3 Instruction Handbook
Interfacing with the LS8000-3
Part No. 93463 / Drawing No. 0921-01561
Page 57 of 221
Revision A (Sep 2007)
Transmit
Receive
Pin 1 (TX+)
Pin 2 (TX-)
Pin 3 (RX+)
Pin 4 (RX-)
Computer/PLC
RX+
RX-
TX+
TX-
100
Ω
Cable Jacket
Cable Shield
RS-422 Cable
Shielded,
Two Twisted 100 Pairs
Two Twisted 100 Pairs
Ω
Drain Wire/Shield
RS-422 Serial Pinouts
Gauge DB9
Pin Number
Pin Number
Gauge Signal
Description
Description
Computer Pin
Number
Number
Computer Signal
Description
Description
1
RS422 Transmit +
varies
RS422 Receive + (B)
2
RS422 Transmit -
varies
RS422 Receive – (A)
3
RS422 Receive +
varies
RS422 Transmit + (B)
4
RS422 Receive -
varies
RS422 Transmit – (A)
5
Signal Ground
varies
Signal Ground
The computer RS-422 pinout can vary with the RS-422 card used. The signal
descriptions listed above should be matched to the signal descriptions listed in
the documentation provided with the RS-422 adapter.
descriptions listed above should be matched to the signal descriptions listed in
the documentation provided with the RS-422 adapter.
Analog Output Voltage/Ground (Pins 6-7)
Analog Output Specifications
Voltage Range
0-2V
Resolution 12-bit
Minimum
∆V (Step Size)
0.5mV
Load 1k
Ω minimum
Filtering 0.1
µF Capacitor
Recommended across
Output to Signal Ground
Output to Signal Ground