User Manual

Demand Assignment
System Overview GSI 006
605-0000-450
Draft Issue 1.3dr Date 8/02/00
Page 1 of 2 © Copyright Airspan Communications Corporation 1998
SYSTEM MANAGEMENT OVERVIEW
12. System Management
12.1. Sitespan
Sitespan can manage a range of ACC products (AS4000 Fixed Assigned, AS4000
Demand Assigned, Multiline, and Alcatel Litespan) and is designed to allow the
management of these from a central location.
Sitespan uses two distinct management elements, a Server to manage the equipment
racks, and an Equipment View to provide user access. Both use a 133 MHz or better
Pentium PC with 16Mbytes of Ram using a Windows NT operating system.
The Server and an Equipment View may run in the same PC or alternatively the
Equipment View is set remote from the Server and gains access over a network link.
A Server manages the AS4000 racks regardless of whether any equipment views are
connected to it. All operations and alarms are written into a transaction file located in
the server machine maintaining a complete record of status. Any Equipment View PC
that connects is up loaded with this status.
The Equipment View PC can connect to a number of Server PC’s at the same time.
A number of Equipment View PCs can connect to the Server PC at the same time, each
Equipment View using secure password access.
Each connected Equipment View is updated in real time reflecting the consequences of
any changes initiated by other Equipment Views.
Physical Connections. The Access Concentrator connected to the server PC via a
single RS232 cable. A 9 or 25 way D-Type connects to the serial port of the PC and a
25 way D-Type connects to the Modem Shelf. Alternatively a PC card (e.g. Digiboard
) can be used to allow a number of Shelf Controllers to access a single serial port.
The Server PC is connects to a remote Equipment View PC using either,
• Dial-up Modem Link or
• Fixed Link or
• X.25 Packet Switch Network