Comtech EF Data cdm-570a - Data and Miscellaneous Interfaces

CDM-570A/570AL Satellite Modem with Optional Packet Processor
Revision 5
Introduction 1–23 MN-CDM570A
1.3.5 Data and Miscellaneous Interfaces
Connector
Function
Type
Primary Data
(3 selectable modes)
RS-422/EIA-530 DCE (Rates up to 10 Mbps) (also supports X.21 DCE & DTE)
V.35 DCE (Rates up to 10 Mbps)
Synchronous EIA-232 (Rates up to 300 kbps)
25-pin D-sub (female)
Optional G.703
1.544 Mbps T1 (Balanced 100
Ω
)
2.048 Mbps E1 (unbalanced 75Ω or balanced 120Ω)
15-pin D-sub (female)
or BNC (female)
External Reference Input/Output
As an input: 1, 2, 5 or 10MHz -6dBm to +10dBm (nominal 50/75 Ω, BNC
female connector)
As an output: 10MHz, 2.7 volts peak-to-peak ± 0.4 volts, low impedance
output
(The Ext. reference phase locks Tx and Rx synthesizers, and all baseband
clock generation)
BNC (female)
Modem Alarms
Relay outputs (Tx, Rx & unit faults)
Demodulator I & Q test outputs (constellation)
Demodulator Rx Signal Level output (0 to 10 volts)
External carrier off input
15-pin D-sub (male)
1:1 Control
Async serials link to other modem, and switching signals in 1:1 pair, via CRS-
170A
9-pin D-sub (female)
Alarm Relay
Type: Form C Contacts. Rating: 125V AC/30V DC, 0.3A AC/1A DC
15-pin D-sub (male)
Remote Control
EIA-232 or EIA-485 modem control and monitoring
9-pin D-sub (male)
Ethernet
10/100 Base Tx for http, SNMP and Telnet interfaces
RJ-45