Modem-To-User Data Interface Connections And Examples; Modem-To-User Non-Ip Data Interface Connections And Examples - Comtech EF Data CRS-180 Installation And Operation Manual

CRS-180 70/140 MHz IF 1:1 Redundancy Switch
Cables and Connections
5.2.2

Modem-to-User Data Interface Connections and Examples

5.2.2.1

Modem-to-User Non-IP Data Interface Connections and Examples

The data cables and components identified in each of the examples that follow in
this section must be purchased separately, as required.
In addition to the control and IF Modem-to-Switch cabling shown previously, a number of data
interface configurations are available for the CDM-625A and CDM-625 Advanced Satellite
Modems. The Figure 5-3 block diagram is typical for the examples shown in Sects. 5.2.2.1.1
through 5.2.2.1.3.
With the exception of the 10/100 Ethernet Interface configuration shown in Figure 5-13 (which
uses customer-supplied Ethernet cables and Layer 2 switches), you must use one cabling and
component set per 1:1 modem pair for each user interface. See the examples for specific
quantities.
Figure 5-3. CDM-625/A Block Diagram – UserModemSwitchTraffic
5–6
MN/CRS180.IOM
Revision 11