Bri (2Bridb) Daughter Board - NEC UX5000 Hardware Manual

Chapter 2 - Blade Installation and Startup
2.7.6

BRI (2BRIDB) Daughter Board

The BRI daughter board provides 2 BRI circuits. This daughter board is installed on the 2BRIU blade and
provides:
●
2 (2BRIU) 2-Channel Circuits (2B + D) configured as T-Bus or S-Bus
●
64 Kb/s Clear B-Channel and 16 Kb/s D-Channel
●
Connection point for 2BRIU
These trunk circuits can be connected to ISDN trunks or ISDN telephones, depending on the switch setting
within system programming. All ISDN telephone circuits (#1-2 [BRI blade] and #3-4 [with the BRI daughter
board]) are supplied DC power from the UX5000 system.
In order to block new calls on the blade, system programming (Program 90-05-01, Menu 3) must be used. This
program will prevent new calls from being established on the blade, but it will not terminate any existing calls.
ISDN Terminal
2 - 74
Interface
Figure 2-36:
#2
S/T
TR Off
TR On U
SW2
BRI DAUGHTER BOARD
#1
S/T
TR Off
TR On U
SW1
Chapter 2