Integrator's Reference Manual for the VSX Series
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Null Modem Adapter
This adapter is used when connecting a VSX 8000 to a serial device that transmits
on pin 3.
This drawing is provided for design reference only. Polycom claims no responsibility or
liability for the quality, performance and/or reliability of cables based on this reference
drawing. Cables are available from Polycom that meet the appropriate manufacturing
tolerances, quality and performance parameters.
Description Used With Part Number
Male to female DB-9 adapter
plug
VSX 8000 1517-21577-001
1.25
.51
2X 4-40 UNC-2B
THREAD
.71
2X 4-40 UNC
THREAD
9 PIN
FEMALE
D-SUB CONNECTOR
9 PIN
MALE
D-SUB CONNECTOR
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
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