Comtech EF Data CDM-Qx, Installation And Operation Manual

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CDM-Qx Satellite Modem Revision 6
Summary of Specifications MN/CDMQx.IOM
A.3 Data Interfaces
Note: Features not in the initial product release are identified in parentheses.
EIA-530 Synchronous RS-232
EIA-530
(3 selectable modes)
EIA-422/EIA-530 DCE (Rates up to 12 Mbps)
Also supports X.21
V.35 DCE (Rates up to 12 Mbps)
Synchronous RS-232 (Rates up to 300 kbps) 25-pin D-sub (female)
G.703 (Balanced)
1.544 Mbps T1 (Balanced 100
Ω
)
2.048 Mbps E1 (Balanced 120
Ω
)
15-pin D-sub (female)
G.703 (Unbalanced)
1.544 Mbps T1 (unbalanced 75
Ω
)
2.048 Mbps E1 (unbalanced 75
Ω
)
BNC (female)
Multi-Port G.703 (Bal)
1 to 4 Ports E1 w/ D&I
2.048 Mbps E1 (balanced 120
Ω
)
Note: All 4 ports must be synchronous
(2) 9-pin, D-sub (female)
(2 ports per DB-9)
EIA-612 / 613
(HSSI) EIA-612/EIA-613 (Rates up to 20 Mbps) 50-pin, mini-D SCSI-II
HSSI (female)
Modem Alarms
(Present on all
modules) Relay outputs (Tx, Rx & unit faults)
Demodulator I & Q test outputs (constellation)
Demodulator Rx Signal Level output (0 to 2.5 volts)
External carrier off input 15-pin D-sub (male)
Serial Remote Control EIA-232 or EIA-485 modem control and monitoring 9-pin D-sub (male)
10/100BaseT IP based monitoring & control RJ-45
A.4 Automatic Uplink Power Control (Future)
Operating Mode
Requires Closed Network Framed mode for transport of Eb/No information
from remote modem (EDMAC can be enabled or disabled)
Target Eb/No range
0 to 9.9 dB at remote demod (default is 4.0 dB)
Max AUPC range
0 to 9 dB (default is 3 dB)
Monitor functions
Remote demod Eb/No
Tx power level increase
(front panel or via remote control interface)
A–6