
Boards for HiPath 3000
P31003-H3560-S403-54-7620, 09/05
3-252
HiPath 3000 V6.0, HiPath 5000 V6.0, Provisional Service Manual
boards.fm
Peripheral Boards
Interface specifications
Characteristics of the signaling protocols
Connecting two switching units via a tie trunk requires a protocol supported by both systems.
HiPath 3750 and HiPath 3700 supports:
●
"Immediate start" protocol
No seizure acknowledgment; with answer signal.
This is the most widely used protocol internationally.
●
"Wink signal" protocol
Proceed to send signal using "wink" signal; with answer signal.
This protocol is the same as the "immediate start" protocol except that it also features a
proceed-to-send signal. It is most useful for connecting systems that are not immediately
ready for digit input.
●
"Delay signal" protocol
Dial delay with "delay" signal; with answer signal.
This protocol permits the transmission of dialing information to be delayed until the receiv-
ing exchange is ready. It differs from the wink signal protocol only in that the remote system
returns a backward signal immediately after seizure even if it is not ready for digit input.
Transmit path
Four-wire transmit level
-3.5 dBr
Four-wire receive level
-3.5 dBr
Characteristic impedance
600 ohms
Frequency range
0.3 to 3.4 kHz, +/- 1 dB
Dielectric strength of speech wires against
ground
1 kV surge, 1.2/50
µ
s and 10/700
µ
s
Signaling
Type of E&M interface (programmable)
1, 1A, 1B, 2, 3, 5
Protocols
To ANSI/EIA/TIA-464-A, configurable
Immediate start
Wink signal
Delay signal
Signaling method
DP or DTMF
Содержание HiPath 3000 V3.0 or later Gigaset M1 Professional
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