Comtech EF Data CRS-180 User Manual
Page 108
CRS-180 70/140 MHz IF 1:1 Redundancy Switch
MN/CRS180.IOM
Cables and Connections
Revision 11
5–48
Figure 5-40 shows the block diagram typical for the kits shown in Sects. 5.7.2.1.1 through
5.7.2.1.3. Separate interface cabling kits are needed for these CDM-700 data interfaces. For
example, Sect. 5.7.2.1.1 identifies the interface kits used with the CDI-10 Dual G.703 E3/T3/STS-
1 and the CDI-60 HSSI Data Interfaces.
With the exception of the CDI-70 Gigabit Ethernet Data Interface configuration shown in Sect.
5.7.2.2, where user-provided Ethernet cables and Layer 2 Switch are used, one interface kit per
1:1 modem pair is required for each user interface (see examples for specific quantities).
5.7.2.1.1 Dual G.703 E3/T3/STS-1 75Ω Data Interface (CDI-10) Kit KT/12542
and HSSI Data Interface (CDI-60) Kit KT/12578
Figure 5-41 shows an example of a CDM-700 1:1 modem configuration with the CDI-10 Dual
G.703 Data Interface installed in Slot 1, and the CDI-60 HSSI Data Interface installed in Slot 2.
The figure depicts installation of one KT/12542 Dual G.703 Interface Kit (each kit can supply one
or two CDI-10 interfaces), and one KT/12578 HSSI Interface Kit.
KT/12542 G.703 (CDI-10) 75Ω Interface Kit
CEFD P/N
Qty Description
CA/BNC75OHM
8
Cable – IF BNC, 75Ω, 1’
RF/SA32KC-IN/OUT
4
Combiner – 2-way w/Bracket, 0.25-300 MHz, 75Ω BNC
KT/12578 HSSI (CDI-60) Interface Kit
CEFD P/N
Qty
Description
PP/SC3523
1
Cable - RoHS-Compliant, HSSI ‘Y’ Splitter, (2X) HD-50MHD-50F, 3”
Figure 5-41. CDM-700 CDI-10 G.703 E3/T3/STS-1, CDI-60 HSSI 1:1 Example