O-6
Introduction
Important Information Before Use
Please read this information before proceeding to a further part of this manual.
1. Port and its usage
Ports which is available with SBS is shown below.
2. Description of port types
Interconnection circuits should be such that the equipment continues to comply with the requirements of
4.2 of EN41003 for TNV circuits and 2.3 of EN60950 for SELV circuits after making connections between
circuits.
3. Port types and call paths between ports
Call paths can be established between following ports.
PA1
PA1
PA1
ITS
PA1
1AS
4. Port to port loss and associated cable loss for each port
Port to port losses and associated cable losses are as follows.
Port Type
PA1
1AS
ITS
Port usage
2-wire PSTN exchange line without DDI
2-wire PBX extension
Loop calling unguarded clearing
MF tone or loop disconnect signalling
Timed break recall
2-wire analogue speechband apparatus
MF tone or loop disconnect signalling
Timed break recall
Panasonic SBS key telephone
Type of circuit
TNV
SELV
Port description
Analogue PSTN Port
Port for power failure
Port for Single Line Telephone
Port location
Exchange Line Port of the Central
Control Unit (VB-9150UK)
Exchange Line Port of expansion
cards (VB-9260UK,VB-9261UK)
Power Failure Port of the Central
Control Unit
Extension port 7, 8 of the Central
Control Unit (VB-9150UK)
Extension port 1 to 8 of expansion
cards (VB-9261UK,VB-9262UK)
Introduction
Call path
PA1 < > 1AS
Port to port loss
1dB
Associated cable loss
0dB to 1dB
1AS
PA1
1AS
1AS
1AS
ITS
ITS
ITS
ITS
1AS
ITS
PA1
>
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Summary of Contents for VoiceSonic VB-9411AD
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Page 94: ...CONNECTION OF OPTIONAL UNITS I 34 MEMORANDUM ...
