3-38
PCS-1500/1500P
Fig. 3-22 IF-745 Board Block Diagram
MA-97 Interface
Address
Decoder
&
I/O port
Dsub
25p
EMI
Filter
FL200
~
FL223
CN200
IC200, 201, 202, 203
IC105
Buffer
CN100
Buffer
V.35SD
[OHA4..5]
[OHD0..7]
IC103, IC104
V.35
Transceiver
V.28
Transceiver
IC101
V.35RD
V.35RT
V.35ST
V.35TT
V.35CS
V.35DR
V.35RI
V.35ER
V.35RS
366CRQ
366DPR
366NB[1,2,4,8]
366ACR
366PND
366DLO
IC102
Receive
Call
Detection
Block
OPSDET
366DLO
V.35RI
NETOPINT
IC204, 205, 206
Voltage
Converter
5V
- 5V
IC100
3-2. Circuit Description of the Respective Boards
Summary of Contents for PCS-1500
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