3 data interfaces, 4 automatic uplink power control – Mocomtech CDM-QX User Manual

Page 42

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CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Revision

7

Introduction

MN/CDMQx.IOM

1–18

1.5.3

Data Interfaces

Note: Features not in the initial product release are identified in parentheses.

EIA-530

Synchronous RS-232

25-pin D-sub (female)

EIA-530
(3 selectable modes)

EIA-422/EIA-530 DCE (Rates up to 12 Mbps)
Also supports X.21(Rates up to 2.048 Mbps)
V.35 DCE (Rates up to 12 Mbps)
Synchronous RS-232 (Rates up to 300 kbps)

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)

8.448 Mbps E2 (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

(4) RJ-45 Ports

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

1.5.4

Automatic Uplink Power Control

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)

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