User Manual

AS8100 Sitespan User Guide Version 3.7
605-0000-426
GSI 008
Draft Issue 6.0. Date 4/4/00
Page 29 of 305
2Mbit/s
Link to
Exchange /
Central
Office
SiteSpan
4
RS 232 links
Equipment Rack
RF Combining
Shelf
Equipment Power
Interface Shelf
3
2
4
-24V to -70V
RLT Modem Shelf
1
RF Card
8
Modem
Card
1
Analogue
Card
LED/Alarm Panel
Tributary
Unit
Alarm
Unit
Alarm
Extensions
Power Supply
Unit
1
3
Low
Noise
Amplifier
Shelf Controller
Shelf
Monitor
Branching
Unit
Power
Amplifier
1
Modem / Communications Link to
other PCs
Figure 5. AS4000 System Architecture
3. Each card or FRU (Field Replaceable Unit) that electronically holds its serial number
automatically reports it to the Sitespan Server on power up. This serial number is a
unique identifier of the resource in question and cannot be changed after manufacture.
Whenever an FRU is replaced, the controller of the FRU identifies the event and reports
the serial number of the new FRU to the Sitespan Server.