Edmac; Updating Modem Firmware; Fully Accessible System Topology (Fast) - Comtech EF Data CDM-570 Installation And Operation Manual

CDM-570/570L Satellite Modem with Optional IP Module
Introduction

1.3.10 EDMAC

See Chapter 9. EDMAC CHANNEL for detailed information about this feature.
The CDM-570/570L incorporates Embedded Distant-end Monitor And Control (EDMAC) to
facilitate network management for small networks. In this mode, an additional 5% overhead is
combined with the traffic data, (1.6% in Turbo BPSK modes, Turbo Rate 21/44 QPSK/OQPSK,
and all data rates greater than 2 Mbps). M&C information is added transparently, allowing access
to the distant-end modem.
Additionally, EDMAC-2 uses 1.6% overhead in all modes for those applications where the 5%
overhead is excessive. The EDMAC and EDMAC-2 modes do not require any additional cabling
at either the local or distant-end Modems. Access to EDMAC is via the standard M&C control
port. Full monitor and control is possible, and the on/off status at the distant-end carrier can be
controlled.

1.3.11 Updating Modem Firmware

See Chapter 4. UPDATING FIRMWARE for detailed information about this
feature.
The modem uses 'flash memory' technology internally. This simplifies firmware updating – the
update can be performed without opening the unit simply by connecting the modem to any
10/100BaseT Ethernet port on a user-supplied PC once Ethernet connectivity has been
established. Firmware updates can be received via the Internet (from Comtech EF Data's
website), through e-mail, or on CD.
USB reflash is not available in this firmware release – please consult Comtech
EF Data Customer Support for the release schedule of this feature.

1.3.12 Fully Accessible System Topology (FAST)

See Appendix C. FAST ACTIVATION PROCEDURE for detailed information
about this feature.
The CDM-570/570L Satellite Modem incorporates a number of optional features. In order to
permit a lower initial cost, the unit may be purchased with only the desired features enabled.
If, at a later date, there is a need to upgrade the functionality of a unit, Comtech EF Data provides
Fully Accessible System Topology (FAST), a technology which permits the purchase and
installation of options through special authorization codes. These unique Fast Access Codes may
be purchased from Comtech EF Data during normal business hours, and then loaded into the unit
using the front panel keypad.
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