User Manual

AS4000 Wireless Local Loop

System Overview

GSI 003

605-0000-430

Issue 1.2 Date 7/4/99

Page 3 of 6

Mains Plug

CRU

PSU

NTU

Drop

Cable

Figure 20. AS4000 ST-V2 Connection

The maximum length of this Drop Cable is 25m. with a 40mm maximum bend radius.

1.4 Network Termination Unit (NTU) when using ST-V2

The two 2-wire VF line feeds connect to the CPE with the one or two NTUs located within

the customers premises into which a range of devices can be plugged.

In general, the customer has access to the same range of facilities that are supported by a

conventional copper pair. For normal telephony services, these could typically include:

• multi-frequency or loop-disconnect dialling

• subscriber private metering

• intrusion tone

• malicious call interception.

• caller line identification

Note. Line reversal is not supported.

All tones, tone cadences and announcements which are generated by the Local Exchange

are passed transparently over the AS4000 System. Line feed voltage, ringing current and

ringing cadence are generated by the ST equipment.

The Customer Premises Equipment is connected to the NTU