Chapter 2 - Blade Installation and Startup
Chapter 2 2 - 71
The CN2 connector each provides connection to 4 analog DID trunk ports, which are polarity sensitive (tip
to tip, ring to ring). The OPX circuits, however, are not polarity sensitive. The DIOPU requires one universal
slot. If Program 10-03-01 has OPX defined, note that the blade will consume 4 trunk and extension ports when
installed. If OPX is not defined, then only trunks ports will be consumed.
Figure 2-33: DID / OPX POLARITY
Blade Maximum’s
9.5”
Chassis
19” Chassis
w/CCPU
19” Chassis
w/o CCPU
19” Chassis
x4
System Max.
w/Networking
2 5 6 23 Trunk: 50:
Station: 128
(1) Analog DID Line
(2) Off-premise extension
T(+)
R(-)
T
R
One pair cable
One pair cable
(Non polarity)
4DIOPU-A1
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