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PRI cabling information
Page 171 of 188
ISDN PRI Installation
QCAD129/NT9J93xx
This cable connects the RS-232-C interface between an Echo Canceller and
the PRI card. See
.
— Standard length—7 ft (2.1 m)
— Construction—22 AWG (0.644 mm), stranded
— P1 Connector—15-pin, male, subminiature D, with jack-screws
— P2 Connector—25-pin, male, subminiature D, with jack-screws
Table 46
QCAD129/NT9J93xx wire list
PRI signal
From
To
Echo signal canceller
DCD
P1-1
P2-20
DTR
RXD
P1-2
P2-2
TXD
DTR
P1-4
P2-8
DCD
TXD
P1-5
P2-3
RXD
GND
P1-10
P2-7
GND
RTS
P1-12
P2-4
CTS
P1-9
P2-5
TPENB (Note)
P1-15
nc
Note:
TPENB = Test Port Enable Bar