SWAN 2 Concentrator Installation and Support Guide

Connecting a Current Loop Device

SWAN 2 Concentrator Installation and Support Guide—429593-010

D-2

Current Loop Converter

The RS-232 (DB-25 connector) of the Black Box, CL092A-M current loop converter is

connected to the RS-232 port of a SWAN 2 concentrator’s current loop adapter cable.

The RJ-45 connector of the converter supplies the current loop connection to a

twisted-pair cable. The maximum length of the twisted-pair cable is 1500 feet.

Figure D-3 shows the supported RS-232-to-current-loop converter pinout.

Current Loop Adapter Pinouts

The DB-25 side of the BB45DB25 current loop adapter can connect to 6530-type

current loop cables, 6600-type current loop cables, or directly to the current loop

connector on a device. The RJ-45 connector of the adapter connects to a current loop

converter through a twisted-pair cable.

Figure D-4 shows the supported BB45DB25 current loop adapter pinout.

Figure D-3. Pinout of RS-232-to-Current-Loop Converter

VST 104.VSD

RJ-45

Connector

DB-25

Connector

1 . . N/C

2 . . GND

3 . . Rx-

4 . . Tx+

5 . . Tx-

6 . . Rx+

7 . . GND

8 . . N/C

1 . . FG

2 . . TD

3 . . RD

7 . . GND

8 . . +U