CBUPRI/E1 SBUPRI-23/30 User Manual
80-14005000-01
2–10
The PRI is connected via a screened RJ-45 connector and provides a
correctly terminated 100/120
Ω
interface when used in conjunction with
up to 4m of category 4 STP cable.
The pin connections for the 8-way RJ45 socket on all SBUPRI are shown
below:-
Pin
Signal Name
Signal
I/O
4
Transmit (To
NTU)
TxD(A)
Output
5
“
TxD(B)
Output
1
Receive
(From NTU)
RxD(A)
Input
2
“
RxD(B)
Input
Table 2 - PRI Interface Pin Connections
2.8 Management and Control
The SBUPRI operates in conjunction with a Shelf Manager Module for
configuration purposes so there is no directly connected command port.
Under normal conditions the majority of commands are initiated by other
application cards via the system bus so only a limited set of commands
are available directly to the user.
Please see the manual on the SBU Systems for details of how to use the
Shelf Manager Module.