Codan 6700 Series User Manual

Maintenance and fault finding
98 Block Up Converter Systems 6700/6900 series User Guide
Table 21: Test C
Procedure Comment
Measure 10 MHz at both ends of the
transmit or receive IF cable as required.
The 10 MHz signal level should be –5 to
+5 dBm.
WARNING
A DC block may be
required to protect the test
equipment from the DC
voltage on the IF cable.
Table 22: Test D
Procedure Comment
Measure IF level at both ends of the
transmit IF cable.
The IF signal level should be consistent
with the IF level plan for the BUC.
NOTE
It is recommended that a
spectrum analyser is used
to measure the IF level. A
power meter may be used
but the reading will be
misleading unless the
10 MHz signal can be
filtered out.
WARNING
A DC block may be
required to protect the test
equipment from the
+24/48 V DC on the
transmit IF cable.
Table 23: Test E
Procedure Comment
Measure the DC voltage at the fan feed-
through connections on the BUC,
positive and negative as marked.
Depending on the BUC, the DC voltage
should usually be either:
• 9 to 10.2 V DC, or
•12V ±1VDC
Refer to your Codan representative for
exact specifications for your BUC.

Codan 6700 Series Specifications

General

Brand	Codan
Model	6700 Series
Category	Media Converter
Language	English