Installation
38 Block Up Converter Systems 6700/6900 series User Guide
For example, a technician working on a BUC at the antenna
can make an RS232 connection and disable transmissions.
Transmissions cannot be re-enabled at another source, but the
other interfaces can still monitor the BUC parameters. When
the RS232 connection is removed and transmission is restored
using the RS232 interface, normal monitor and control
operation is restored.
RS422/485 interface
The RS422/485 interface can be operated in either 2-wire or
4-wire mode. The RS422/485 interface enables monitor and
control of the BUC over long distances using other protocols
that are not available for use with the RS232 interface.
FSK interface
The FSK interface enables monitor and control of the BUC
over long distances using other protocols that are not available
for use with the RS232 interface. The FSK interface does not
require an extra monitor and control serial cable, but does
require a modem with FSK monitor and control capability. If
an appropriate modem is not available, contact your Codan
representative to find out what accessories are available to
access the FSK interface.