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2.5.4 2BRM Module
The 2BRM module, a daughter board mounted on the UNI board of the OfficeServ 7100, is
the digital trunk interface board to provide the BRI board with two ports. This module is
connected to 4-channel ISDN trunk in S mode or T mode.
2.5.4.1 Bk Diagram
The following figure shows the 2BRM block diagram:
Figure 2.10
Block Diagram of the 2BRM Board
S/T Interface chip
(PEB3086)
S/T Interface chip
(PEB3086)
TRANS
(APT-2S0-22A)
TRANS
(APT-2S0-22A)
16 pin connector
(UNI b’d)
100 pin connector
(UNI b’d)
OSC
(7.680 Mhz)
BRI#1 S/T
BRI#2 S/T
/ADDRESS, DATA
/INT, /CONTROL
HWX, HWR
/4M, /FSK, /RST
Содержание OFFICESERV 7100
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