2
ADC Telecommunications, Inc.
F
EATURES
The PCS-822 has the following features. Refer to
for a PCS-822 block diagram.
• Eight COLU slots, each supporting two DSL pairs or six POTS pairs
• One Management Unit slot
• Two MUX slots supporting primary and secondary service for equipment protection
• Redundant DC power connections
• Fan card (PFU-830) for cooling
• Door alarm and Fan alarm
• One general purpose alarm input
• Seven alarm outputs in the form of normally open relay contacts
• Test pair output for returning TR-909 type signature resistances to automated testing systems such as Mecha-
nized Loop Testing (MLT)
• (Five) thirty-five foot cable stubs for wiring and one sixteen-foot ground wire
• NIU Slots
Figure 2. PCS-822 Block Diagram
CAUTION
If you use a PCT-850 card with any input signal other than a DSX-1, the MUX card may be
damaged. This type of damage is not covered by the ADC warranty.
The NIU and MUX must be configured for the same frame format and line code for correct operation.
NIU
#1
MUX #1
Slot
#1
Slot
#2
Slot
#3
Slot
#4
Slot
#5
Slot
#6
Slot
#7
Slot
#8
Fan
Unit
Management
Unit
MUX #2
Alarm Inputs
Alarm Outputs
Test
Tip & Ring
Control
Data
Data
NIU
#2
NIU
#3
NIU
#4
NIU
#5
NIU
#6
NIU
#7
NIU
#8
DSL Pairs 1 - 2
Network Circuit #1
(2 Pair)
Network Circuit #2
(2 Pair)
Network Circuit #3
(2 Pair)
Network Circuit #4
(2 Pair)
Network Circuit #5
(2 Pair)
Network Circuit #6
(2 Pair)
Network Circuit #7
(2 Pair)
Network Circuit #8
(2 Pair)
DSL Pairs 3 - 4
DSL Pairs 5 - 6
DSL Pairs 7 - 8
DSL Pairs 9 - 10
DSL Pairs 11 - 12
DSL Pairs 13 - 14
DSL Pairs 15 - 16
POTS Pairs 1 - 6
POTS Pairs 7 - 12
POTS Pairs 13 - 18
POTS Pairs 19 - 24
POTS Pairs 25 - 30
POTS Pairs 31 - 36
POTS Pairs 37 - 42
POTS Pairs 43 - 48
Redundant
MUX Units