CDM-625 Advanced Satellite Modem
Revision 1
Rear Panel Connector Pinouts
MN-0000036 (Ref MN/CDM625.IOM)
Table 3-1. CDM-625 Rear Panel Connectors
Connector
Group
Name
Connector Type
Function
IF
Sect. 3.2
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. 3.3
Data Interface
25-pin Type ‘D’ female
Serial synchronous data
Input/Output
G.703
Data
Balanced G.703
15-pin Type ‘D’ female
G.703, D&I or D&I++;
Quad E1 Ports 1 & 2
Auxiliary G.703
15-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) RJ45 female
10/100 BaseT 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 (RS232/485)
Utility
Sect. 3.4
Remote Control
9-pin Type ‘D’ male
Serial Remote Interface
(RS232/485)
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
Power/Ground
Sect 3.5
AC
See Sect. 3.5.1
Chassis power
DC
See Sect. 3.5.2
Chassis power
Ground
#10-32 stud
Common Chassis Ground
3–2
