MT9094 Mitel Networks Corporation, MT9094 Datasheet - Page 22

• Manufacturer Part Number: MT9094
• Description: ISO2-CMOS ST-BUS FAMILY Digital Telephone (DPhone-II)
• Manufacturer: Mitel Networks Corporation

MT9094
7-66
CCITT ISDN
Reference
Point S
Interface
Twisted Pair
to Central
PBX
Converter
DC to DC
CONVERTER
DC to DC
5 Volts
Figure 9 - CCITT ISDN Voice/Data Terminal Equipment - TE1
5 volts
Figure 10 - Voice/Data Digital Telephone Set Circuit
VBias
LRx
LTx
Lout
Lin
Z
T
(ALE)
10.24 MHz
Controller
MT8972
MT8930
DNIC
HDLC
SNIC
with
(RD)
C4
F0
DSTo
DSTi
(WR)
C4b
F0b
DSTo
DSTi
IRQ
AD0-7
DSTo
DSTi
C4i
F0i
DSTo
AD0-7
DSTi
IRQ
IRQ
C4i
F0i
CS
SCLK
DPhone-
MT9094
SCLK
(ALE)
INTEL
MCS-51
DPhone-
8051
AS
INTEL
MT9094
CS
(RD)
DATA1
E
MCS-
DATA1
51
SPKR+
SPKR-
HSPKR+
HSPKR-
M+
M-
(WR)
R/W
MIC+
MIC-
HSPKR+
HSPKR-
M+
M-
SPKR+
SPKR-
MIC+
MIC-
AAAA
AAAA
AAAA
AAAA
AAAA
AAAA
AAAA
AAAA
AAAA
AAAA
A
A A
A A
Speaker
Microphone
A
A
A A
A
Speaker
Microphone
Handset
Handset