Chapter 3. Rear Panel Connectors And Pinouts; Table 3-1. Cdm-750 Rear Panel Connectors; J10 | Tx Mon Connector, Type 'Sma' ............................................................................................ 3–3 - Comtech EF Data CDM-750 Installation And Operation Manual

CDM-750 Advanced High-Speed Trunking Modem
Rear Panel Connectors and Pinouts
Connector Group Ref
(Chapter 3 Sect. Ref.) Des
IF J9
(Sect. 3.2)
J11
J12
J13
J10
Utility J1
(Sect. 3.3)
J2
J3
J4
J8
Terrestrial Data J5
(Sect. 3.4)
J6
J7
N/A
N/A
Power/Ground N/A
(Sect 3.5)
N/A
N/A
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.

Table 3-1. CDM-750 Rear Panel Connectors

Name
L-BAND RX IN
IF RX IN
L-BAND TX OUT
IF TX OUT
TX MON
ALARM
REDUNDANCY
REMOTE
MGMT
EXT REF
DATA
DATA
OPTICAL
INTERFACE OPTION SLOT 1
INTERFACE OPTION SLOT 2
AC
DC (FUTURE)
Ground
Connector Type
Type 'N' female
BNC female (70/140MHz band)
Type 'N' female
BNC female (70/140MHz band)
Type 'SMA' female
15-pin Type 'D' male
9-pin Type 'D' female
9-pin Type 'D' male
RJ-45 female
BNC female
RJ-45 female
SFP (Small Form Factor
Pluggable) Module cage
PIIC (Plug-In Interface Card)
slots
See Sect. 3.5.1
See Sect. 3.5.2
#10-32 stud
3–2
Revision 1
MN-CDM750
Function
IF Input
IF Output
Monitor L-Band Output
Form C Alarms (relay closures)
Connection to External 1:1
Controller
Serial Remote Interface
(RS232/485)
10/100 BaseT M&C
External Reference Input/Output
10/100/1000 BaseT Gigabit
Ethernet traffic
Accommodates optional hot-
pluggable 1000Base-SX 850nm
Transceiver Module and other
SFP modules
Accommodates optional data
interface cards (e.g., G.703
E3/T3/STS-1)
Chassis power
Chassis power
Common Chassis Ground