Comtech EF Data CDM-625A - Manual (Page 88)

CDM-625A Advanced Satellite Modem MN-CDM625A
Rear Panel Connectors and Pinouts Revision 3
3–4
3.2 CDM-625A Cabling Connections
The rear panel connectors provide all necessary external connections between the unit and
other equipment.
(TOP) Standard AC Chassis (CEFD P/N PL-0021325)
(BOTTOM) Optional 48V DC Chassis (CEFD P/N PL-0021327)
Connector Group
(Sect)
Name Connector Type Function
IF
Sect. 3.2.1
Rx
BNC female (70/140MHz band)
IF Input
Type ’N’ female (L-Band)
Tx
BNC female (70/140MHz band)
IF Output
Type ’N’ female (L-Band)
Terrestrial Data
Sect. 3.2.2
Data Interface 25-pin Type ‘D’ female Serial synchronous data input/output
G.703
Data
Balanced G.703 9-pin Type ‘D’ female
G.703, D&I or D&I++;
Quad E1 Ports 1 & 2
Auxiliary G.703 9-pin Type ‘D’ female Quad E1 Ports 3 & 4
Unbalanced Out BNC female Receive G.703 (IDO); ASI
Unbalanced In BNC female Transmit G.703 (DDI);ASI
IDI BNC female Insert Data In / Sub-rate Auxiliary Tx G.703 In
DDO BNC female
Drop Data Output / Sub-rate Auxiliary Rx G.703
Out
10/100 Ethernet (4X) RJ-45 female 10/100 Base-T management and data
IDR Data/Alarms/Audio 44-pin High Density Type ‘D’ female Intelsat Open Network auxiliary signals
ESC 9-pin Type ‘D’ female ESC Input/output (EIA-232/485)
Utility
Sect. 3.2.3
Remote Control 9-pin Type ‘D’ male Serial Remote Interface (EIA-232/485)
Alarms 15-pin Type ‘D’ male Form C Alarms (relay closures)
PMSI 9-pin Type ‘D’ female Pre-Mapped Symbol Interface (CnC)
1:1 Control 9-pin Type ‘D’ female Connection to External 1:1 Controller
External Reference BNC female Input/output
Figure 3-3. CDM-625A Rear Panel View