Table 3-1. Rear Panel External Connections - Comtech EF Data CDM-Qx Installation And Operation Manual

CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier®
Rear Panel Connectors
Name
Base Chassis: TYPICAL ALL CONFIGURATIONS (See Sect. 3.2)
AC Plug
DC Plug (Optional – CDM-QxL)
Ground
M&C 10/100BaseT
485/232
Tx
70/140 Tx /Rx
(CDM-Qx)
Rx
Tx
L-Band Tx/Rx
(CDM-QxL)
Rx
Ref
Configuration #1: Modem1 with G.703 T1/E1 Balanced (DB-15); Modem2 with EIA-422 (DB-25)
Alarms
Slot #1
Mod
G.703
Alarms
Slot #2 Demod
G.703
Alarms
Slot #3
Mod
EIA-530
Alarms
Slot #4 Demod
EIA-530
Configuration #2: Modem 1 with G.703 EIA-422(DB-25); Modem2 with G.703 T1/E1 Unbalanced (BNC)
Alarms
Slot #1
Mod
G.703
Alarms
Slot #2 Demod
G.703
Alarms
Slot #3 Mod
EIA-530
Alarms
Slot #4
Demod
EIA-530
Configuration #3: Modem 1 with G.703 T1/E1 Balanced (DB-15) and Quad E1 Interface (1-4 Ports E1,w/ D&I)
Alarms
Slot #1
Mod
G.703
Alarms
Slot #2 Demod
G.703
Port 1
Port 2
Slot #3 and
Slot#4 Quad Port 3
E1
Port 4
Ext Ref
Note: The European EMC Directive (EN55022, EN50082-1) requires using properly shielded cables for DATA I/O.

Table 3-1. Rear Panel External Connections

Ref
Conn Type
Des
IEC
Terminal Block
#10-32 Stud
RJ-45
9-Pin Male
BNC
BNC
Type 'N'
Type 'N'
BNC
15-Pin Male
15-Pin Female
15-Pin Male
15-Pin Female
15-Pin Male
25-Pin Female
15-Pin Male
25-Pin Female
15-Pin Male
BNC
15-Pin Male
BNC
15-Pin Male
25-Pin Female
15-Pin Male
25-Pin Female
15-Pin Male
BNC
15-Pin Male
BNC
J1 RJ-45
J2 RJ-45
J3 RJ-45
J4 RJ-45
J5 9-Pin Female
3–3
Function
Modem Power
Modem Power
Grounding
Remote Interface
Remote Interface
RF Output 75Ω or 50Ω
RF Input 75Ω or 50Ω
RF Output 50Ω
RF Input 50Ω
External Reference for Modem Synthesizers
Form-C Alarms
Balanced G.703 Data Input
Form-C Alarms
Balanced G.703 Data Output, or Input/Output
Form-C Alarms
Data Input
Form-C Alarms
Data Output, or Input/Output
Form-C Alarms
Unbalanced G.703 Data Output (incorrect slot
for IO)
Form-C Alarms
Unbalanced G.703 Data input
Form-C Alarms
Data Input
Form-C Alarms
Data Output, or Input/Output
Form-C Alarms
Unbalanced G.703 Data Output (incorrect slot
for IO)
Form-C Alarms
Unbalanced G.703 Data input
Balanced E1 (Full E1 or Fractional D&I)
Balanced E1 (Full E1 or Fractional D&I)
Balanced E1 (Full E1 or Fractional D&I)
Balanced E1 (Full E1 or Fractional D&I)
Balanced E1 clock input and output
Revision 7
MN/CDMQX.IOM