Samsung Ubigate iBG3026 Configuration Manual page 515

Type I, II, III, V
There are five different E&M interface types or models: Type I, II, III, IV, and V
(Type IV is not supported. Each type has a different wiring arrangement,
hence a different approach to transmit E & M supervision signaling(on-hook
/off-hook signaling). The signaling side sends its on-hook/off-hook signal over
the E-lead. The trunking side sends the on-hook/off-hook over the M-lead.l
E & M Type I This is the most common interface in North America.
Type I uses two leads for supervisor signaling: E, and M. During inactivity,
the E-lead is open and the M-lead is connected to ground. The PBX
Indicates the off-hook condition by connecting the M-lead to battery.
E & M Type II Two signaling nodes can be connected back-to-back.Type II
uses four leads for supervision signaling: E, M, SB, and SG. During inactivity
both the E-lead and M-lead are open. The PBX indicates the off−hook
condition by connecting the M-lead to the signal battery(SB) lead connected
to battery of the signaling side.
E & M Type III Not commonly used in modern systems. Type III uses four
leads for supervision signaling: E, M, SB, and SG. During inactivity, the
E−lead is open and the M-lead is set to ground connected to SG lead of
signaling side. The PBX indicates off-hook condition by disconnecting the
M−lead from the SG lead and connecting it to the SB lead of signaling side.
E & M Type IV Not supported by Submarine
E & M Type V Type V is symmetrical and allows two signaling nodes to be
connected back-to-back. This is the most common interface type used outside
of North America. Type V uses two leads for supervisor signaling: E, and M.
During inactivity the E-lead and M-lead are open. The PBX(acting as trunk
circuit side) indicates off-hook condition by connecting the M-lead to ground.
How to Configure Analog E & M Voice Port
To set up each parameter of basic analog E & M voice port, follow the next
procedures.
Configuration Steps
configure terminal
−
voice-port
−
dial-peer voice pots
−
exit
−
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Ubigate iBG3026 Configuration Guide/Ed.00
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