Comtech EF Data CDM-840 - Manual (Page 42)

CDM-840 Remote Router Revision 2
Rear Panel Connections MN-CDM840
3–2
• Bayonet Coupling Style: The jack has a pair of guide posts that accommodate the plug’s
lockdown slots. This lockdown design provides secure assembly without over-tightening
the connection.
• Threaded Coupling Style: The jack features external threads. The plug shell features
internal threads, and has either a knurled outer surface to permit hand-tightening of the
connection, or hex flats to accommodate torqued installation.
Connection Instructions:
• Bayonet Coupling Connections: Use the plug slots to guide, then slide the plug onto the
jack posts. Then, turn the plug clockwise until the jack posts are fully seated within the
plug slot.
• Threaded Coupling Connections: Engage the plug onto the jack threads, and then turn
the plug clockwise until it is fully threaded onto the jack. Do not over-tighten the
connection.
3.1.1.1 Type ‘BNC’
BNC plugs and jacks feature a Bayonet Coupling design.
3.1.1.2 Type ‘TNC’
TNC plugs and jacks feature a Threaded Coupling design
similar to Type ‘N’, Type ‘F,’ and Type ‘SMA’ connectors.
3.1.1.3 Type ‘N’
Type ‘N’ connectors feature a Threaded Coupling design
similar to Type ‘TNC’, Type ‘F’, and Type ‘SMA’
connectors.