Rear Panel; Iec Line Input Connector; Figure 4-2. Rear Panel - Comtech EF Data CDM-600 Operating Instructions Manual

CDM-600 Satellite Modem
Physical Description
4.3

Rear Panel

External cables are attached to connectors on the rear panel of the CDM-600. These
comprise:
Name
Rx IF
Tx IF
Aux Serial
Overhead
Data Interface
External Reference
Audio
Remote Control
IDR Alarm
Alarms
Balanced G.703
IDI
DDO
Rx Unbalanced
Tx Unbalanced
External Frequency Ref
Note: The European EMC Directive (EN55022, EN50082-1) requires using properly shielded
cables for DATA I/O. These cables must be double-shielded from end-to-end, ensuring a
continuous ground shield.
4.3.1

IEC Line Input Connector

The IEC line input connector contains the ON/OFF switch for the unit. It is also fitted
with two fuses - one each for line and neutral connections (or L1, L2, where appropriate).
These are contained within the body of the connector, behind a small plastic flap.
•
•
IMPORTANT

Figure 4-2. Rear Panel

Ref Des
J1
J2
P6
P3A
P3B
J9
P4A
P4B
P5A
P5B
P7
J10A
J11A
J10B
J11B
J12
For 230 volt AC operation, use T0.75A, (slow-blow) 20mm fuses.
For 115 volt AC operation, use T1.25A, (slow-blow) 20mm fuses.
For continued operator safety, always replace the fuses with the correct
type and rating.
Connector Type
BNC
BNC
He1402 3 pin header
25-pin D (male)
25-pin D (female)
BNC
9-pin D (female)
9-pin D (male)
15-pin D (female)
15-pin D (male)
15-pin D (female)
BNC
BNC
BNC
BNC
SMA
4–2
Revision 7
MN/CDM600.IOM
Function
RF Input
RF Output
Auxiliary Serial
Overhead Data
Data Input/Output
Input
Sound Input
Remote Interface
Alarm
FORM C Alarm
Balanced G.703 Data
Insert Data In
Drop Data Output
Receive G.703
Transmit G.703
External IF reference
Input (Optional)