ADC PCS-822, Technical Practice, Page: 18 / 46

SCP-PCS822-021-03H January 6, 2003
8
ADC Telecommunications, Inc.
Figure 8 depicts a typical RAM configuration. The RAM consists of an ARX-965 Crossbox Enclosure and up to three
ARL-942 Asynchronous Remote Line Units (ARLUs) and ASU-940 splitter/combiners. The RAM is powered from
the ALU-935s installed in the Field Shelf. The ASU-940 combines the ADSL signals from the ARL-942 with the
analog POTS circuits from the crossbox or other source of dial tone. Four DS1 circuits provide up to 24 PVC’s of
ATM data for each RAM.
Figure 8. PCS-822 Application – Edge RAM
NIU #5
NIU #6
NIU #7
NIU #8
Slo
t
#
1
Sl
ot
#2
Sl
ot
#
3
Sl
o
t
#4
Slo
t
#
5
Slo
t
#6
Slo
t
#
7
Sl
ot
#
8
Management
and
Multiplex
Units
4 DS1s - ATM
POTS Circuits
(up to 128)
PCS-822
Field Shelf
Edge RAMs
(
POTS & ADSL)
ALU-935
ALU-935
ALU-935
ALU-935
ALU-935
ALU-935
ALU-935
ALU-935
ARL-942
ARL-942
ASU-940
ASU-940
ASU-940
ASU-940
ASU-940
ASU-940
ARL-942
ARL-942
ARL-942
ARL-942
POTS (Analog - 8 pair per ASU-940)
SHDSL
(1 pair per ARL-942)
SHDSL
(1 pair per ARL-942)
2 SHDSL pairs
per ALU-935
RAM
RAM
ADSL/
POTS
ADSL/
POTS
Splitter
Splitter