Samsung OFFICESERV 7100, Service Manual

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OfficeServ 7100 Service Manual
© SAMSUNG Electronics Co., Ltd.
2-57
2.6 Terminal
This chapter will describe the block diagram regarding each terminal connected to the
OfficeServ 7100 system, and the main functions.
2.6.1 DPIM
DPIM(Door Phone Interface Module) is a conversion relay device that enables the inter
communication by conversing the analogue signal of the door phone into the digital signal and
digital signal of the system into the analogue signal, in order to use the analogue door phone,
which was previously developed and is currently being used, by connecting it to the OfficeServ
7100 system. The longest available distance between the DPIM and the OfficeServ 7100 is 400 m,
and the calling distance between the DPIM and the door phone is 200 m. The longest calling
distance from the main door phone is 600 m.
2.6.1.1 Block Diagram of DPIM
The block diagram of the DPIM is described below. The DPIM uses the door box, which is
used in the Samsung DCS-816 analogue key telephone system, as it is. The DPIM consists
of the speaker, microphone, and the transfer part for sending/receiving the analogue signal.
Figure 2.33 Block Diagram of DPIM
DASL(TP3406)
High Feature
Codec
Line Interface
Door
Interface
MCU
(H8/323)