Figure 2.11 Layout Between The 2Brm And Uni Boards - Samsung OFFICESERV 7100 Service Manual

2.5.4.2 Major Features
The 2BRM module uses ISDN Subscriber Access Controller(ISAC) chip(PEB3086) by
Infeneon Inc. The ISAC chip carrying out the most operation of the 2BRM module is the
four-wire S/T interface and implements the ISDN transfer control with the S-bus interface
on one ship.
Full duplex 2B+1D S/T interface transceiver based on Consultative Committee on
International Telegraphy and Telephony(CCITT) I.430
Frame conversion between S/T interface and ISDN Oriented Modular(IOM)
Receive timing recovery according to a specific operation mode
D-channel access
Activation and deactivation procedures(automatic wake-up in power-down state)
Layout between 2BRM and UNI
The 2BRM is a daughter board mounted on the UNI board and interfaces with the primary
side 16-pin connector and the secondary side 100-pin connector. The ISAC chip connects
the highway signal and the control signal to CPLD of the UNI board via 100-pin connector
and the primary side signal to the 2BRM module via the 16-pin connector of the UNI board.
© SAMSUNG Electronics Co., Ltd.
<2BRM>
ISAC-SX
ISAC-SX

Figure 2.11 Layout between the 2BRM and UNI Boards

OfficeServ 7100 Service Manual
<UNI>
HWR/HWX
CPLD
Control Signal
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