AWAN 3886 Server Installation and Configuration Guide

AWAN 3886 Server Installation and Configuration Guide—427428-006
B-1
B Current-Loop Support
In your operational environment, you might need current-loop support for printers and
other terminals since current loop can support a signal up to 1,500 feet. An alternative
to RS-232, current loop is supported by some terminals and serial printers, and by
passive current-loop to RS-232 adapters similar to the 3886-CL (RS-232 to Current
Loop 20MA Converter).
RS-232 to Current Loop 20MA Converter
(3886-CL)
Current loop for AWAN 3886 (16 and 32) models is supported by using an external
16-port RS-232 to Current Loop 20-milliampere converter (3886-CL). The RS-232 to
Current Loop converter is a 16-port external hardware converter that converts the
AWAN 3886 RS-232 interface to current loop on a line-by-line basis. No extra software
is required, and setup is minimal. Because only RJ45 connectors are supported, only
AWAN 3886-16 and AWAN 3886-32 models can use the 3886-CL (part number
427420-001).
The RS-232 to 20MA Current Loop Converter (3886-CL) supports baud rates up to
19.2kps; other standard baud rates supported are:
•
300 baud
•
600 baud
•
1200 baud
•
2400 baud
•
4800 baud
•
9600 baud
An 8-Line Cable Organizer (Figure B-3 on page B-4) can help you manage connecting
RJ45 cables to the correct current-loop ports. The 8-Line Cable Organizer is optional
and must be ordered separately. To view a list of part numbers, from the home page of
the NonStop Technical Library (NTL), select Support and Service > Service
Information > Part Numbers.
Other special adapters might be needed and are described in Adapter Hood Pinouts
on page B-6.
Note. Adapter pinouts for the RS-232 side of the AWAN 3886-16 and AWAN 3886-32 models
(old and replacement models) are different from the pinouts for the AWAN Access Servers
3883/4/5.