Polycom 2457-26122-001 User Manual
Cables
Polycom, Inc.
39
Null Modem Adapter
This adapter is used when connecting RealPresence Group 700 system to a
serial device that transmits on pin 3 such as Crestron Pro2 processor. It is a
male to female DB-9 adapter plug.
male to female DB-9 adapter plug.
Do not use this adapter with an AMX device. AMX systems support both RS-232
and RS-422. Therefore, for RS-232 support, use a null modem cross-over cable
that carries only pins 2, 3, and 5, with pins 2 and 3 crossed.
Length
Part Number
RoHS Compliant
—
1517-61577-001
Yes
Drawings and part numbers are provided for reference only. Polycom claims no
responsibility or liability for the quality, performance, or reliability of cables
based on these reference drawings, other than cables provided by Polycom.
Contact your Polycom distributor or Polycom Custom/Vertical Products to order
cables that meet the appropriate manufacturing tolerances, quality, and
performance parameters for your application.
DB9F
DB9M
PIN 1&6
PIN 4
PIN 2
PIN 3
PIN 3
PIN 2
PIN 4
PIN 1&6
PIN 5
PIN 5
PIN 7
PIN 8
PIN 8
PIN 7
PIN 9
N/C