Comtech EF Data CDM-570 - Manual (Page 93)

CDM-570/570L Satellite Modem with Optional IP Module Revision 12
Front Panel Operation MN/CDM570L.IOM
5–7
5.2.2.1 (SELECT:) Config (Configuration) Menus
CONFIG: Rem All Tx Rx CEx
Frame Intfc Ref Mask ODU
Use the ◄ ► arrow keys to select from the submenu choices shown, and then press ENTER.
The following table identifies each submenu available from the Configuration menu branch, its
content section in this chapter, and each submenu’s functional description:
Submenu Sect. Functional Description
Rem 5.2.2.1.1
(Remote Control) Used to define whether the modem is being controlled
locally, or remotely.
All 5.2.2.1.2
Used to completely configure the modem. Follow the step-by-step prompts to
make choices or edit data. This is highly recommended for new users, as it
provides guidance through all the configuration parameters.
Tx 5.2.2.1.3
(Transmit) Used to define, on a parameter-by-parameter basis, the transmit
configuration of the modem. Use the available submenus when there is a need
to change, for example, just the Transmit IF Frequency.
Rx 5.2.2.1.4
(Receive) Used to define, on a parameter-by-parameter basis, the receive
configuration of the modem. Use the available submenus when there is a need
to change, for example, just the Receive Data Rate.
CEx 5.2.2.1.5 (Clock Extension) Used to define the G.703 Clock Extension interface.
Frame 5.2.2.1.6
Used to define operation in a transparent mode (no framing) or in a framed
mode. In the framed mode, an overhead of 5% or 1.6% is added to the rate
transmitted over the satellite so that M&C and AUPC information may be
passed to the distant end.
Intfc 5.2.2.1.7
(Interface) Used to define which electrical interface type is active at the data
connectors (either the EIA-530 port, or the G.703 ports).
Ref 5.2.2.1.8
(Reference) Used to define whether the modem should use its own internal
10MHz reference, or phase lock to an externally applied reference and, if so,
at what frequency.
Mask 5.2.2.1.9
Used to mask certain traffic alarms, which may cause operational problems. For
example, certain multiplexers use ‘all ones’ as an idle pattern. However, by
convention, the ‘all ones’ condition is taken to be the Alarm Indication Signal
(AIS). If desired, this alarm may be masked.
ODU
(Summary only)
5.2.2.1.10
On the CDM-570L only: Used to configure a BUC (Block Up Converter) or LNB
(Low-Noise Block Down Converter), if connected.
See Appendix L. CDM-570L ODU (BUC,LNB) OPERATION for full details.