Cabling To The Cdm-840 - Comtech EF Data CRS-170A Installation And Operation Manual

CRS-170A L-Band 1:1 Redundancy Switch
Cables and Connections
4.3

Cabling to the CDM-840

1. For information on the CDM‐840's 1:1 auto‐enable functionality, see:
2. For information on the cables and cable assemblies specified in this section, see:
4.3.1 CRS-170A
Terrestrial data interface components/kits must be ordered separately. See Sect.
4.3.4 for CDM‐840 terrestrial data interface configuration and connection
examples and details.
Comtech EF Data's KT‐0000160 1:1 Redundancy Control/IF Interface Cabling Kit is required for
control and L‐Band switch‐to‐unit cabling connections:
KT-0000160 1:1 Redundancy Control / IF Interface Cabling Kit (CRS-170A
CEFD Part No.
PL/10129-1
CA/WR9378-4
CA/RF10453-4
See Sect. 4.3.2 and Figure 4‐16 in this chapter for details of the CDM‐840 Unit‐to‐Switch Control
Interface connection, and Sect. 4.3.3 and Figure 4‐17 for details of the CDM‐840 Unit‐to‐Switch
IF Interface connections. Information for connecting a pair of CDM‐840s together with the
CRS‐170A L‐Band 1:1 Redundancy Switch module is provided here; the table that accompanies
each figure lists the cables provided in KT‐0000160 for this initial setup.
•
Chapter 3. MODEM AND SWITCH CONFIGURATION
•
CDM‐840 Remote Router Installation and Operation Manual (CEFD
P/N MN‐CDM840)
•
Appendix A. CABLE DRAWINGS
CDM-840 Control and IF Interface Cabling Kit KT-0000160
Qty Description
1 CRS-170A Switch – Top Assembly
Control Cable – Universal, DB-9M
2
DB-9M, 4'
RoHS-Compliant Cable – IF (Tx/Rx), 50Ω
4
Type 'N', 4'
Used For
1:1 Redundancy
CDM-840
CDM-840
4–17
Revision 9
MN/CRS170A.IOM
CDM-840)
Ch. 4
Fig
4-16
4-17
4-16
Switch Control
Switch IF Interface 4-17