Comtech EF Data CDM-750 User Manual
Page 52

CDM-750 Advanced High-Speed Trunking Modem
Revision 2
Rear Panel Connections
MN-CDM750
3–6
Table 3-1. CDM-750 Rear Panel Connectors
Connector Group
(Chapter 3 Sect.)
Ref
Des
Name
Connector Type
Function
IF
(Sect. 3.2.1)
J9
L-BAND RX IN
Type ’N’ female
IF Input
J11
IF RX IN
BNC female (70/140MHz band)
J12
L-BAND TX OUT
Type ’N’ female
IF Output
J13
IF TX OUT
BNC female (70/140MHz band)
J10
TX MON
Type ’SMA’ female
Monitor L-Band Output
Utility
(Sect. 3.2.2)
J1
ALARM
15-pin Type ‘D’ male
Form C Alarms (relay
closures)
J2
REDUNDANCY
9-pin Type ‘D’ female
Connection to External 1:1
Redundancy Switch
J3
REMOTE
9-pin Type ‘D’ male
Serial Remote Interface
(EIA-485/232)
J4
MGMT
RJ-45 female
10/100 BaseT M&C
J8
EXT REF
BNC female
External Reference Input /
Output
Terrestrial Data
(Sect. 3.2.3)
J5 DATA
RJ-45 female
10/100/1000 BaseT Gigabit
Ethernet traffic
J6 DATA
J7 OPTICAL
SFP (Small Form Factor
Pluggable) Module cage
Accepts optional hot-
pluggable SFP 1000Base-SX
850mm Transceiver Module
N/A
INTERFACE OPTION
SLOT 1
PIIC (Plug-In Interface Card) slots
Accepts optional data
interface modules (e.g., G.703
E3/T3/STS-1, OC-3 Single /
Multi Mode. STM-1 Copper,
etc.)
N/A
INTERFACE OPTION
SLOT 2
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.
See Sect. 3.1 Cabling Connections Types for information about each connector type and its
connection instructions.