Outside Line Types; Section 8 Network And Control; Transmission, Network, And Control Specifications; Transmission - NEC Electra Elite IPK General Description Manual

Electra Elite IPK
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S 7 O
ECTION
The following outside lines can be used with the Electra Elite IPK system.
H
H
H
H
H
H
H
S 8 N
ECTION ETWORK AND
8.1
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General Description Manual
L T
UTSIDE INE YPES
2-wire, Loop Start or Ground Start Trunks
2-wire, 2-way DID Lines (Dial Pulse or DTMF)
4-wire, E&M Tie Lines (Type I or V, Dial Pulse, or DTMF)
Digital Trunk T1/FT1 (Loop Start, Ground Start, Tie Line (E&M), or DID
Signaling)
ISDN-BRI Trunks
ISDN-PRI Trunks
VoIP Trunks (Internet Protocols)
C
ONTROL

Transmission, Network, and Control Specifications

8.1.1

Transmission

H Data Length:
From Multiline Terminal to ESI(8)-U( ) ETU: 23 bits
From ESI(8)-U( ) ETU to Multiline Terminal: 23 bits
H Data Transmission Rates:
Between ESI(8)-U( ) ETU and Multiline Terminal: 184K bps
(voice and signaling)
H Scanning Time for each Multiline Terminal: 32 ms.
8.1.2

Network

Time Division Multiplexing (TDM) allows transmission of a number of
separate data and voice simultaneously over one communications
medium. The information below indicates the specifications the
Electra Elite IPK system uses for switching, clock, data bus,
timeframe.
TDM Switching:
H
TDM Clock:
H
H TDM Data Bus:
H TDM Timeframe: 125 µs.
PCM (µ Law)
2.048 MHz
8 bit
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