User Manual

AS8100 Sitespan User Guide Version 3.7
605-0000-426
GSI 009
Draft Issue 6.0. Date 4/4/00
Page 33 of 305
Sitespan/EM
Front Panel Alarms
DC Input
PL6
2Mbit/s IN
2Mbit/s OUT
2 Wire
Port
PL8
Baseband
Alarm
Combiner
PL7
JP6 JP7
JP1
JP2
JP5
SK16
SK15
J2
PL5
PL4
JP4
JP3
Figure 8. CT Modem Shelf Backplane Fixed Assignment.
Sitespan
2Mbit/s Links
to Exchange /
Central Office
4
RS 232 links
Equipment Rack
RF Combining
Shelf
3
2
-24V to -70V
Modem Shelf
1
8
Modem
Card
1
Analogue
Card
LED/Alarm Panel
Tributary
Unit
Alarm
Unit
Alarm
Extensions
Power Supply
Unit
1
Low
Noise
Amplifier
Shelf Controller
Branching
Unit
Power
Amplifier
1
Shelf
Monitor
RF
Card
Modem /
Communications Link
to other PC’s
Figure 9. AS4000 System Architecture (Fixed Assignment)
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.