Comtech EF Data CDM-625A - Manual (Page 85)

3–1
Chapter 3. REAR PANEL
CONNECTORS
AND
PINOUTS
3.1 Cabling Connection Types
The CDM-625A Advanced Satellite Modem uses a number of different cables. Each cable type is
typically dedicated to a specific mode of operation types – see Section 3.2.
1) Not all of these operational interface types may be available.
2) The European EMC Directive (EN55022, EN50082-1) requires using properly
shielded cables for DATA I/O. These cables must be double-shielded from end-to-
end, ensuring a continuous ground shield.
3.1.1 Coaxial Cable Connections
Coupling Type
Connector Type
Plug Jack
Bayonet
(Type ‘BNC’ shown)
Threaded
(Type ‘N’ shown)
Figure 3-1. Coaxial Connector Examples
The types of coaxial cables used by Comtech EF Data are ‘BNC’, ‘TNC’, ‘N’, ‘F’, and ‘SMA’. Coaxial
cables (plugs) and their mating connectors (jacks/sockets) are available in two coupling styles:
Bayonet or Threaded.
• Bayonet Coupling Style: The jack has a pair of guideposts that accommodate the plug’s
lockdown slots. This lockdown design provides secure assembly without over-tightening the
connection.