Model 1253 20 Ma Current Loop Version - NCI 125X User Manual

Model 1253
20 mA Current
Loop Version
Pin No. Signal
1* Chassis ground
23 (RD) Received data(-)
25 (RD) Received data(+)
Model 125X MiniPrinter Series User's Manual
Direction
-
From printer
To printer
*Optional
1. Connectors
On the printer: 25-hole receptacle, equivalent to
DB-25S
On the cable: 25-pin plug, equivalent to DB-25P
2. Cable
Use cable less than 2500 feet long. A shielded
cable using twisted pair conductors is desirable.
Description
Cable shield
Printer data return line
Printer data input line
27