Loopback Adapter Tester Plug Serial DB25-F DB9-F (RS232)

A dual-ended serial wrap plug used to test serial ports for operation. This particular wrap plug has both DB-25 and DB-9.
A very nice addition to any tech's tool kit.
These work great and can test additional wires besides just the send and recieve.
DSUB 9 pin Female

DSUB 9 Female Connector
DSUB 25 pin Female

DSUB 25 Female Connector

Wiring
Wired Together
DB-25 port: 2-3, 4-5, 6-8-20-22.
DB-9  port: 3-2, 7-8, 6-1-4-9.

Originally Used with IBM PC Diagnostic Software.
Used with Checkit Software.
For a fast test install and use Terminal it should echo back.

Part # 31020

$5.95

QTY DISCOUNT PRICING
1-9	10-99	100-999
$5.95	$5.65	$4.85

1IN BEIGE
1IN RED
2IN BEIGE

Certifications:

Technical Drawing for Part 31020