Comtech EF Data CPLINK User Manual

Page 14

9. Miscellaneous Configuration

Main Menu > Configuration > Miscellaneous (Ref. Fig. 9)

XCVR#

XCVR1 (transceiver #1 select)
XCVR2 (transceiver

select)

*Cold Start: (On/Off) The XCVR provides an optional "Cold Start" feature that will
insure that the internal 10 MHz reference signal is at a stable temperature prior to
allowing the RF and IF outputs to be turned on. A fixed cold start interval of 15 minutes
is used. At the end of the 15 minute interval, the RF and IF outputs will automatically be
turned ON providing all fault conditions and appropriate settings are met. If a XCVR
was powered ON with "Cold Start ON", the operator can override this function by
selecting "Cold Start OFF".

*Auto Fault Recovery (AFR): (On/Off) This parameter defines how the XCVR
responds to momentary fault conditions. If AFR is OFF and a fault condition occurs that
causes the RF or IF output to be muted, then that fault condition clears, the XCVR will
remain muted. If AFR is ON, and the same situation occurs, the XCVR will
automatically be unmuted and return to normal operating mode. To protect against
repetitive, momentary faults, if the XCVR experiences 5 occurrences of the same fault,
the AFR parameter will automatically be set to OFF.

*Note: The Cold Start and AFR settings can only be changed if the currently selected
XCVR is ONLINE.

Local Ref Osc Adjust: A fine adjustment of
the internal 10 MHz frequency is provided as a
user controllable parameter. This parameter can
be varied within the range of 000 to 255.

Ext Ref Present: (Status only). If an external
reference is connected to the XCVR, this
parameter will display the status of the signal.

Ext Ref Fault Logic: (On/Off) The XCVR
allows the user to select whether or not the
summary fault relay is activated if the internal
10 MHz reference loses lock with the external
reference attached to the "EXTERNAL REF IN"
port J4.

Up/Dn Conv Slope Adjust: The TX and RX
channel slopes can be adjusted from 0.0 (factory
setting) to 1.0 in 0.1 steps. 1.0 corresponds to
approx. 2 dB of positive slope.

Fig. 9

ONLINE/OFFLINE status field:
(Status only). Displays the line status
of the currently selected XCVR.