Abis Link Equipment (Le); Cover Parts; Backup Battery (Battery) - Siemens BS-240 Technical Description

Technical Description (TED:BSS)
BS-240/241
3.15
3.16
3.17
42
The ABISCONV module can be installed only as alternative to the Over Voltage Protec-
tion and Tracer module (OVPT).

Abis Link Equipment (LE)

The link equipment acts as front end to provide the Abis interface. Different equipment
can be used for wire or radio transmission depending on customer requirements. If a link
equipment is available at the telecommunication site, possibly no link equipment is
necessary. If BS-240/241 is installed away from a telecommunication site the link equip-
ment must be installed inside the Service Rack/Shelter. If radio transmission is required,
microwave equipment must be used. Also direct connections of PCM24/30 links are
possible. The number of Link Equipment, which can be installed, depends on the height
of the Link Equipment.

Cover Parts

All unequipped slots in the Frames of a Rack/Shelter must be equipped with Cover
Parts, to reach a balanced airflow. If the complete Frame is empty, it is not necessary to
cover all the empty slots.

Backup Battery (BATTERY)

Up to four battery systems can be equipped in the Service Racks/Shelters. One frame
AC/DC can be connected to two battery systems with two independent connecting
leads. One battery system can consist of up to three battery groups (one group can
consist of up to four batteries) which are always in the same Rack/Shelter due to temper-
ature control issues.
Information
Base Station System
A30808-X3247-L14-2-7618