Table 1-4. Rear Panel Connectors And Functions - Comtech EF Data CDM-425 Installation And Operation Manual

Connection
Group
(Chapter Sect.)
IF
(Sect. 3.2.1)
Terrestrial Data
(Sect. 3.2.2)
Utility
(Sect. 3.2.3)
Ground / Power
(Sect 3.3)
The European EMC Directive 2004/108/EEC (EN 55022, EN 50024) requires using properly shielded
cables for DATA I/O. These cables must be double-shielded from end-to-end, ensuring a
continuous ground shield.
Introduction

Table 1-4. Rear Panel Connectors and Functions

Name
BNC female (70/140MHz band)
Rx
Type 'N' female (L-Band)
BNC female (70/140MHz band)
Tx
Type 'N' female (L-Band)
Data Interface 25-pin Type 'D' female
Balanced
9-pin Type 'D' female
G.703
Auxiliary
9-pin Type 'D' female
G.703
Unbalanced
BNC female
Out
G.703
Data
Unbalanced
BNC female
In
IDI BNC female
DDO BNC female
10/100 Ethernet (4X) RJ-45 female
Remote Control 9-pin Type 'D' male
Alarms 15-pin Type 'D' male
Pre-Mapped Symbol
9-pin Type 'D' female
Interface (PMSI)
1:1 Control 9-pin Type 'D' female
External Reference BNC female
Ground #10-32 stud – See Sect. 3.3.1
AC Power (Standard) See Sect. 3.3.2
DC Power (Optional) See Sect. 3.3.3
CDM-425 Advanced Satellite Modem
Connector Type
IF Input
IF Output
Serial synchronous data input/output
G.703, D&I or D&I++; Quad E1 Ports 1
& 2
Quad E1 Ports 3 & 4
Receive G.703 (IDO)
Transmit G.703 (DDI)
Insert Data In / Sub-rate Auxiliary Tx
G.703 In
Drop Data Output / Sub-rate Auxiliary
Rx G.703 Out
10/100 BaseT management and data
Serial Remote Interface (RS232/485)
Form C Alarms (relay closures)
Pre-Mapped Symbol Interface (CnC)
Connection to External 1:1 Controller
Input/output
Common Chassis Ground
Chassis power
Chassis power
1–13
Revision 0
Function
MN-CDM-425