CDM-Qx Satellite Modem

Revision 5

External Connections

MN/CDMQx.IOM

Table 4-1. Modem Rear Panel Connectors

Name

Ref. Desig.

Connector Type

Function

Configuration #1 - Modem1 with G.703 T1/E1 Balanced (DB-15) Modem2 with EIA-422 (DB-25)

M&C 10/100BaseT

 

RJ-45

Remote Interface

485/232

 

9-Pin D Male

Remote Interface

Slot #1 Mod:

 

 

 

Alarms

 

15-Pin Male

Form-C Alarms

G.703

 

15-Pin Female

Balanced G.703 Data Input

Slot #2 Demod:

 

 

 

Alarms

 

15-Pin Male

Form-C Alarms

G.703

 

15-Pin Female

Balanced G.703 Data Output, or Input/Output

Slot #3 Mod:

 

 

 

Alarms

 

15-Pin Male

Form-C Alarms

EIA-530

 

25-Pin Female

Data Input

Slot #4 Demod:

 

 

 

Alarms

 

15-Pin Male

Form-C Alarms

EIA-530

 

25-Pin Female

Data Output, or Input/Output

70/140 Tx /Rx:

 

 

 

Tx

 

BNC

RF Output 75 or 50Ω

Rx

 

BNC

RF Input 75 or 50Ω

Ref

 

BNC

External Reference for Modem Synthesizers

AC Plug

 

IEC

Modem Power

Ground

 

#10-32 Stud

Grounding

Configuration #2 - Modem 1 with G.703 EIA-422(DB-25) Modem2 with G.703 T1/E1 Unbalanced (BNC)

M&C 10/100BaseT

 

RJ-45

Remote Interface

485/232

 

9-Pin D Male

Remote Interface

Slot #1 Mod:

 

 

 

Alarms

 

15-Pin Male

Form-C Alarms

G.703

 

BNC

Unbalanced G.703 Data Output (incorrect slot for IO)

Slot #2 Demod:

 

 

 

Alarms

 

15-Pin Male

Form-C Alarms

G.703

 

BNC

Unbalanced G.703 Data input

Slot #3 Mod:

 

 

 

Alarms

 

15-Pin Male

Form-C Alarms

EIA-530

 

25-Pin Female

Data Input

Slot #4 Demod:

 

 

 

Alarms

 

15-Pin Male

Form-C Alarms

EIA-530

 

25-Pin Female

Data Output, or Input/Output

70/140 Tx /Rx:

 

 

 

Tx

 

BNC

RF Output 75 or 50Ω

Rx

 

BNC

RF Input 75 or 50Ω

Ref

 

BNC

External Reference for Modem Synthesizers

AC Plug

 

IEC

Modem Power

Ground

 

#10-32 Stud

Grounding

4–5

Page 45
Image 45
Mocomtech CDM-QX operation manual Modem Rear Panel Connectors, Name Ref. Desig Connector Type Function, Bnc, Iec