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Quantum and Evolution Series Installation and Operating Handbook
dB
Units:
0
Minimum value:
-15
Maximum value:
1dB
Step size:
0
Factory default:
This allows the user to vary the attenuator in the BUC. Typically this is
Description:
used when there is a short run from the modem to the BUC made with
reasonable quality cable, and where with a low loss the minimum output
from the modem could saturate the BUC input unless the attenuator
(early in the BUC gain profile) is set suitably high.
If in doubt always start with the minimum modem Tx carrier level and the
maximum BUC attenuation.
Edit-Tx-Carrier-Advanced-BUC-1-for-1 Screen
This controls whether BUC services (i.e. DC supply and 10MHz reference) stay with the on-
line modem or switch to the standby modem when a 1-for-1 switchover occurs in a 1-for-1
redundant pair of modems. Note that FSK communications will always be switched over.
7.3.3.1.8 Edit-Tx-Interface Menu
Interface: 1:Port 1
This menu has options for configuring the Tx side of each of the four terrestrial E1 ports
on either a Quad E1 or a Sat-ABIS interface card. If either card is not fitted then this
menu will not be available. Selection of an E1 port on this menu will lead through the
following set of options, depending on whether it is a Quad E1 or Sat-ABIS card. Note:
the Quad E1 interface uses an IBS framed service. See Section 8.10 for maximum
overhead baud rates for Quad E1.
Mute services in Standby: [Off]
1: Off
2: On
3:Port 3
7-76
2:Port 2
4:Port 4
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