Selex ES SPA F567DHDE-HP 用户手册
SELEX Communications
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by SELEX Communications S.p.A. in writing
28
July 2010
4W+E/M line usage
PIN
4W+E/M
1
M (+)
Mouth signal +
2
M (-)
Mouth signal -
3
E (+)
Ear Signal +
4
AF_OUT (-)
600 Ohm Balanced OUT AF
5
AF_OUT (+)
600 Ohm Balanced OUT AF
6
E (-)
Ear Signal -
7
AF_IN (-)
600 Ohm Balanced IN AF
8
AF_IN (+)
600 Ohm Balanced IN AF
E/M pin usage
PIN Balanced Unbalanced
1
M (+) Mouth signal +
Mouth signal
2
M (-)
Mouth signal -
not connected
3
E (+)
Ear Signal +
Ear Signal
6
E (-)
Ear Signal -
not connected
E/M Hardware Line settings
The four Mouth signals share the same hardware configuration. The four Ear signals share the same
hardware configuration. For unbalanced settings connect the two communicating entities to the same
ground.
E/M Type I Interface Model
E/M Type I is the original E/M lead signaling arrangement and it is the most common interface type in
North America. The following diagram displays the sent signal states for active/not active signaling.
The RBS grounds its M−lead to signal a seizure. The other device applies battery to its M−lead to
signal a seizure. Prod-El SRB expect to see active conditions on the E−lead and signal active to the
remote device on M−lead.
E/M Type II Interface Model
SRB side