Comtech EF Data SDM-300A, Installation And Operation Manual

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Specifications SDM-300A Satellite Modem
C–2 Rev. 4
Table C-1. General Specifications (Continued)
General Specifications
Digital Data Rate 2.4 kbit/s to 5.0 Mbit/s in 1 bit/s steps
(front panel selection)
Scrambling/Descrambling Types IESS 309 (Synchronous 215)
International Telephone and Telegraph Consultative Committee
(CCITT) V.35
EFData/Comstream compatible
Fairchild compatible
Forward Error Correction Viterbi K = 7: Rate 1/2, 3/4, 7/8, 2/3
Reed-Solomon: Rate 225/205, 126/112, 219/201
Sequential: Rate 1/2, 3/4, 7/8
(Code rates selectable from front panel)
Monitor and Control Front panel display (16 character by 2 rows), backlit
Filter Mask Types INTELSAT/EUTELSAT
Closed net (EFData)
Closed net (Fairchild compatible), SDM-51 compatible
ESC IDR
IBS
None, field-selectable
Loopback Modes Baseband (near end and far end)
Interface (near end and far end)
D&I baseband (insert data into drop data out)
IF Loopback (near end)
RF Loopback (far end)
Diagnostic Features IF Loopback
RF Loopback
Baseband Loopback
Interface Loopback
Fault monitoring (includes current and stored faults)
BER monitoring
Input IF power monitoring
Buffer fill status monitoring
Remote control via serial port
Power Prime power 90 to 264 VAC, 47 to 63 Hz,
40W maximum, fused at 2A
38 to 64 VDC
Physical:
Size
Weight
1.75H x 19.0W x 15.2D inches (1 RU)
(4.4H x 48W x 37D cm)
9 lbs (4 kg)
Shipping (including container):
Size
Weight
9H x 21W x 20D inches
(23 H x 53 W x 51 D cm)
15.25 lbs (7 kg) (approximate)
Environmental:
Temperature
Humidity
Operational Shock
0
°
to 50
°
C (32
°
to 122
°
F)
0 to 95% non-condensing
When any one corner of the modem is dropped from 1 cm onto
a hard surface, the modem will not take any errors or faults.