Fully Accessible System Topology (Fast); Table 1-2. Fast And Fast-Accessible Hardware Options - Comtech EF Data CDM-425 Installation And Operation Manual

1.3.7

Fully Accessible System Topology (FAST)

Chapter 5. FAST ACTIVATION PROCEDURE
The CDM-425 Advanced Satellite Modem incorporates a number of optional features. In order to
permit a lower initial cost, you may purchase the unit enabled with only the desired features.
If you wish to upgrade the functionality of a unit at a later date, Comtech EF Data provides Fully
Accessible System Topology (FAST), which permits the purchase and activation of options
through special authorization codes. You may contact Comtech EF Data Product Support to
purchase these unique, register-specific Fast Access Codes, and then load these codes into the
unit using either the front panel keypad or the CDM-425 HTTP (Web Server) Interface.
FAST Accessible Options: Table 1-2 shows the FAST and FAST-accessible hardware options
available for the CDM-425 Advanced Satellite Modem. The base unit is equipped with Viterbi and
Reed-Solomon codecs. It offers BPSK, QPSK, and OQPSK modulation types, and data rates up
to 5.0 Mbps, with all interface types. While it is limited to Closed Network operation, it also
includes EDMAC and automatic uplink power control (AUPC).
Option
IF band
Forward Error Correction
Modulation
Drop and Insert
DoubleTalk Carrier-in-Carrier
VersaFEC Constant Coding
and Modulation (CCM)
Introduction

Table 1-2. FAST and FAST-accessible Hardware Options

50-180 MHz
950-2250 MHz (L-Band)
VersaFEC Codec
VersaFEC-2 Codec
BPSK, QPSK
8-QAM, 8-ARY
16-QAM, 16-ARY
32-ARY
T1/E1 D&I (single port)
Quad E1 Drop and Insert
Data rate 18 kbps to 512 kbps
Data rate 18 kbps to 1 Mbps
Data rate 18 kbps to 2.5 Mbps
Data rate 18 kbps to 5.0 Mbps
Data rate 18 kbps to 10.0 Mbps
Data rate 18 kbps to 15.0 Mbps
Data rate 18 kbps to 20.0 Mbps
Data rate 18 kbps to 25.0 Mbps
Data rate 18 kbps to 1.1 Mbps
Data rate 18 kbps to 2.5 Mbps
Data rate 18 kbps to 5.0 Mbps
Data rate 18 kbps to 16.0 Mbps
CDM-425 Advanced Satellite Modem
Description and Comments
1–7
Revision 0
Installation
Method
FAST
BASE UNIT
BASE UNIT
BASE UNIT
BASE UNIT
FAST
FAST
FAST
FAST
FAST
FAST
FAST
FAST
FAST
FAST
FAST
FAST
FAST
BASE
FAST
FAST
FAST
MN-CDM-425