Comtech EF Data CDM-550T - Manual (Page 115)

CDM-550T Satellite Modem Revision 3
Summary Of Specifications MN/CDM550T.IOM
14.5 Miscellaneous
Front panel •
Tactile keypad, 6 keys (
↑, ↓, ←, →, ENT, CLR)
•
Vacuum Fluorescent Display (BLUE) - 2 lines of 24 characters
Loopbacks Internal IF loopback, RF loopback, digital loopback, and near/far (inward/outward) loopback
Fault relays Hardware fault, Rx and Tx Traffic Alarms
M&C Interface •
RS-232 and RS-485 (addressable multidrop)
•
RS-485 may be either 2-wire or 4-wire
M&C Software EDMAC software for control of local and distant units
Dimensions 1U high, 12 inches (305 mm) deep
Weight 7 lbs (3.2 kgs) max
AC consumption 18 watts (typical)
25 watts (maximum)
Operating voltage 100 - 240 volts AC, +6% / -10% - autosensing (total absolute max. range is 90 - 254 volts AC)
Operating temp 0 to 50
o
C (32 to 122
o
F)
14.6 Async Overhead
Electrical Interface RS-232 (Rx Data, Tx Data, and ground no flow control)
Async format 8 data bits, no parity, 1 stop bit, (8-N-1) – full duplex
Baud Rates Main channel data rate versus async channel baud rate (All modes except 21/44 and 5/16 Turbo)
<50 kbps - option disabled
50 to 99.999 kbps – 1200 baud
100 to 199.999 kbps – up to 2400 baud
200 to 399.999 kbps – up to 4800 baud
>399.999 kbps – up to 9600 baud
(Rate 1/2 BPSK modes are limited to 4800 at rates above 550 kbps)
Main channel data rate versus async channel baud rate (21/44 and 5/16 Turbo modes)
<150kbps - option disabled
150 to 299.999 kbps – 1200 baud
300 to 599.999 kbps – up to 2400 baud
>599.999 kbps – up to 4800 baud
Miscellaneous Using this feature disables 1:1 inter-unit communication, EDMAC, and ODU control via the FSK link
14.7 Approvals
‘CE’ as follows: EN 55022 Class B (Emissions)
EN 50082-1 (Immunity)
EN 60950 (Safety)
FCC
FCC Part 15 Class B
14–5