User Manual

AS4000 Subscriber Terminal
Installation and Commissioning
GSI 002
605-0000-454
Draft Issue 1.3 Date 8/02/00
Page 13 of 14
3.13 The M Series Subscriber Terminals
The M series Subscriber Terminals are designed for telephony although it is
feasible to accommodate ISDN or data modules within the enclosure. External
antennas connect via IF drop cables to internal Modular Service Interface Units.
The modular units are housed in a Modular Enclosure.
Modular Units (up to 4 )
I/F Drop Cable
Modular Unit
CPE interface
Breaker
Power and
Management
Ribbon
Surge
Arresters
Customer
CPE terminations
Management
Interfaces
Status
Indicators
Modular
Cabinet
Battery and PSU
Compartment
Locking
Screws
Ribbon Retaining Clip
Figure 13. The M Series Enclosure with Modular Service Interface Units Fitted.
The M Series Modular Enclosure is a stainless steel Enclosure with a hinged door
for access to the equipment. It may be wall or plinth mounted. In environmentally
harsh conditions the enclosure is designed to fit inside a 600mm x 600mm IP66
environmental enclosure. Cable entry is via gland nuts and the door is secured by
quarter turn fasteners. The Modular Enclosure can accommodate up to four
Modular Service Interface Units (B, L or N series). The Modular Enclosure is
powered from an AC supply and contains a PSU with provision for battery back-
up and lightning protection. The battery backup maintains the unit operational for
six hours in the event of a mains failure. (assumes two lines of hook on two
separate Modular Units other lines on standby).