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20
C
3: O
HAPTER
PERATION
Supervisory Port
Upgrading
Software
This 8 -pin modular RS-232 jack provides direct terminal access for controlling the
4051 and gathering status and performance data.
The supervisory port serves several functions. A terminal may be connected to this
port for external software control. A modem may be connected for remote access.
The port supports the call on alarm feature. Refer to section Network Management
Connections on page 10 for connection information.
The FAR/LOC switch is also used to set the SUPV port rate when upgrading
software for the 4051 (see PC Setup on page 39).
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