Справочник Пользователя для Cabletron Systems EMM-E6 Ethernet
EMM-E6 User’s Guide
A-9
A.11
EPIM-C (BNC PORT)
Internal Transceiver:
Cabletron Systems TMS-3
Transceiver
Transceiver
Type:
BNC receptacle, with gold
center contact, for use with BNC
type T-connectors and RG-58
thin-net cable (Figure A-5).
center contact, for use with BNC
type T-connectors and RG-58
thin-net cable (Figure A-5).
Figure A-5. EPIM-C (with BNC Port)
Termination:
Using the switch to the side of
the port, you can internally
terminate the port on the module
via a built-in 50
the port, you can internally
terminate the port on the module
via a built-in 50
Ω
terminator.
This eliminates the need to
connect the port to a T-connector
and terminator.
connect the port to a T-connector
and terminator.
Grounding:
For safety, connect only one end
of a thin-net segment to earth
ground. Do not connect the BNC
port of an EPIM-C to earth
ground.
of a thin-net segment to earth
ground. Do not connect the BNC
port of an EPIM-C to earth
ground.
Internal Termination Switch
= On (internally terminated)
= Off (need external termination)
= On (internally terminated)
= Off (need external termination)
Connecting a thin coaxial cable segment to earth ground at
more than one point can produce dangerous ground currents.
more than one point can produce dangerous ground currents.
CH1Book Page 9 Wednesday, March 20, 1996 7:48 AM