Figure 2.21 Default Configuration Diagram Between The Digital Phone And System; Figure 2.22 Data Transfer Format Diagram - Samsung OFFICESERV 7100 Service Manual

CHAPTER 12. Error! Use the Home tab to apply 제목 1,장 제목 1 to the text that you want to appear here.
in slave mode. The data are received in master mode. This is called a ping-pong phenomenon.
The voltage of -48V DC is supplied to the Trans through the Poly switch. The Poly switch
cuts off currents once a short circuit is created in the line, and the Zener diode prevents
against external high voltage.
CODEC
DIGITAL TELEPHONE
(SLAVE)

Figure 2.21 Default Configuration Diagram Between the Digital Phone and System

B1 & BITS B2 & BITS
START BIT
MASTER BURST
MASTER
td
DATA-FORMAT
(DLI Board)
SLAVE
DATA-FORMAT
(Digital Phone)_
2-36
Transmission
I.C(DASL)
M C U
DLI card
D 2b B1 & BITS B2 & BITS
td + Guard Time
Guard
MASTER BURST Time
2 FRAMES(250

Figure 2.22 Data Transfer Format Diagram

2B + D(2 Wire)
x 8
PCM
HIGHWAY
Transmission
I.C(DASL)
DMC
D 2b
SLAVE BURST
SLAVE BURST
µ
s)
© SAMSUNG Electronics Co., Ltd.
SYSTEM
(MASTER)
TIME
SWITCH
CPU