Modem Cabling Connections; Table 3-1. Rear Panel External Cabling Connections; Figure 3-3. Modem Rear Panel (Cdm-570Al-Ip Shown) - Comtech EF Data CDM-570A Installation And Operation Manual

CDM-570A/570AL Satellite Modem with Optional Packet Processor
Rear Panel Connectors and Pinouts
3.2

Modem Cabling Connections

The modem rear panel connectors, shown here in
provide all necessary external connections between the modem and other equipment. See
Sect. 3.3 for information about the modem's power and ground connections.
(BOTTOM) CDMR-570AL Reduced Chassis Depth Modem -24V or -48V DC Chassis
Connector Group
(Sect. Ref.)
IF
(Sect. 3.2.1)
Rx
Tx
Terrestrial Data
Data Interface
(Sect. 3.2.2)
G.703
Data
10/100
Ethernet
Utility Remote Control
(Sect. 3.2.3)
Alarms
1:1 Control
External Reference
Console
(TOP) Standard AC Chassis
(MIDDLE) Optional -24V or -48V DC Chassis

Figure 3-3. Modem Rear Panel (CDM-570AL-IP Shown)

Table 3-1. Rear Panel External Cabling Connections

Name Connector Type
CDM-570AL/CDMR-
570AL: Type 'N' female
CDM-570A: BNC female
CDM-570AL/CDMR-
560AL: Type 'N' female
CDM-570A: BNC female
25-pin Type 'D' female
Balanced 15-pin Type 'D' female
Unbalanced Out BNC 75Ω female
Unbalanced In BNC 75Ω female
M&C 100 RJ-45 female
Traffic 100 RJ-45 female
9-pin Type 'D' male
15-pin Type 'D' male
9-pin Type 'D' female
BNC female
RJ-11 female
F igure 3-1 and summarized in Table 3-1,
0 H 0 H
IF Input
IF Output
Serial synchronous data Input/Output
G.703
T1 (1544 kbps) / E1 (2048 kbps)
Receive G.703 E1 (2048 kbps)
Transmit G.703 E1 (2048 kbps)
10/100 BaseT management and data
(w/optional Packet Processor) Ethernet Traffic
Serial Remote Interface (EIA-232/-485)
Form C Alarms (relay closures)
Connection to External 1:1 Controller
Input/Output
(w/optional Packet Processor) EIA-232 Serial
Console for Packet Processor management
3–5
MN-CDM570A
Revision 3
Function