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Specifications
Digital Data Rate
Scrambling/Descrambling Types
Forward Error Correction
Monitor and Control
Filter Mask Types
ESC
Loopback Modes
Diagnostic Features
Power
Physical:
Size
Weight
Shipping (including container):
Size
Weight
Environmental:
Temperature
Humidity
Operational Shock
C–2
Table C-1. General Specifications (Continued)
General Specifications
2.4 kbit/s to 5.0 Mbit/s in 1 bit/s steps
(front panel selection)
IESS 309 (Synchronous 215)
International Telephone and Telegraph Consultative Committee
(CCITT) V.35
EFData/Comstream compatible
Fairchild compatible
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)
Front panel display (16 character by 2 rows), backlit
INTELSAT/EUTELSAT
Closed net (EFData)
Closed net (Fairchild compatible), SDM-51 compatible
IDR
IBS
None, field-selectable
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)
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
Prime power 90 to 264 VAC, 47 to 63 Hz,
40W maximum, fused at 2A
38 to 64 VDC
1.75H x 19.0W x 15.2D inches (1 RU)
(4.4H x 48W x 37D cm)
9 lbs (4 kg)
9H x 21W x 20D inches
(23 H x 53 W x 51 D cm)
15.25 lbs (7 kg) (approximate)
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.
SDM-300A Satellite Modem
Rev. 4
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