Comtech EF Data CRS-150 - Manual (Page 46)

CRS-150 1:1 Redundancy Switch Revision 2
Cables and Connections MN/CRS150.IOM
4–2
4.2 Cabling to the CDM-600
Examples for connecting a pair of CDM-600 modems together with the CRS-150 are provided in
this section. Once all connections have been made, refer to Chapter 5. MODEM AND SWITCH
CONFIGURATION in this manual – as well as the CDM-600 Satellite Modem Installation and
Operation Manual – to enable 1:1 operation.
The following cables, purchased separately unless noted otherwise, are utilized with all possible
CDM-600 data interface configurations:
CRS-150 Æ CDM-600 1:1 Redundancy – Interface Cabling Reference
CEFD Part # Description Used for: Ch. 4 Fig.
CA/USB-AM/BM-3 Control Cable, USB Type ‘B’ to USB Type ‘A’ (3’) ** Modem Æ Switch Control 4-1
CA/WR9040-4 Data Cable, DB-25F Æ DB-25F (4’) Modem Æ Switch Overhead 4-12
CA/WR9378-4 Data Cable, DB-9M Æ DB-9M (4’) Modem Æ Switch Audio 4-13
CA/WR9563-4 Data Cable, DB-15M Æ DB-15M (4’) Modem Æ Switch G.703
4-8, 4-9,
4-10, 4-11
CA/WR9564-4 Data Cable, DB-15M Æ DB-15M (4’) Modem Æ Switch IDR Alarms 4-3
PL/0813-4 Coax Cable, Type ‘BNC’ 75Ω (4’) Modem Æ Switch Ext Ref 4-4
PL/0946-1 IF (Tx/Rx) Coax Cable, Type ‘BNC’ 50Ω (4’) Modem Æ Switch IF Interface 4-2
PL/6233 Data/Control Cable, Universal, DB-25M Æ DB-25M (4’) Modem Æ Switch Universal Data 4-6, 4-7
When connecting the Control cable between the CRS-150 and the modems,
ensure that screw locks on the ‘D’ type connectors are securely fastened. This
will prevent the accidental unmating of the cable, particularly when a standby unit
is being removed or replaced.
** Although the Auxiliary Serial ports on the CRS-150 and CDM-600 use USB
connectors, the signals are
not USB compatible. DO NOT use these cables to
connect any of these ports to the USB port of a PC or other computing device.
To properly connect a CDM-600 modem pair together with the CRS-150 1:1 Redundancy Switch,
it is essential to ensure that all cable connections, particularly the control and IF (both Rx and Tx)
connections, are made correctly:
For Refer to:
Modem Æ Switch Control Connections Sect. 4.2.2
Modem Æ Switch IF Connections Sect. 4.2.3
Modem Æ Switch Utility Connections Sect. 4.2.4
Modem Æ Switch Data Interface Connections Sect. 4.2.5
4.2.1.1 CRS-150 Accessories
Additional accessory equipment that may be ordered includes:
• CIC-20 (CEFD P/N PL/9459-1) HSSI to LVDS Interface Converter
• CIC-35 (CEFD P/N PL/10335-1) ASI to LVDS Interface Converter
• CEFD P/N PS/AC18W01P01 Auxiliary Power Supply for use with CIC-20 or CIC-35
• CEFD P/N CA-0000268 DB-15F to RJ-48 Adapter (for Balanced G.703 E1/T1)