User Manual

AS4000 Subscriber Terminal
Installation and Commissioning
GSI 002
605-0000-454
Draft Issue 1.3 Date 8/02/00
Page 1 of 14
SUBSCRIBER TERMINAL OVERVIEW
1. Subscriber Terminals
The AS4000 Subscriber Terminal (ST) portfolio includes subscriber terminals for
Voice, ISDN and Data. In general, the customer has access to the same range of
facilities that are supported by a conventional copper pair.
Telephony: services provided 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 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 Line Sockets on the
internal Service Interface Unit.
The specific impedance of the NTU allows tests to be performed by the Service
Interface Unit to detect any attached CPE.
Data: Services provided include
• RS530 interface, configurable to provide X21 and V35 interfaces
• 25 Way D-type interface
• Data rates of 64 and 128kbit/s
ISDN
• supports a basic rate ISDN, 2B+D (2 x 64kbit/s + 16kbit/s) “S” interface
• RJ45 Interface
2. AS4000 Subscriber Terminals
There is a range of STs available, each supporting different services and numbers of lines
See Table 1.
Generic Subscriber
Terminal
Service Interface Unit Function