Sony PCG-723 Service Manual page 12

Serial Loopback Tool
SERIAL LOOPBACK CONNECTOR CONNECTION DIAGRAM
• Connector Types DB9S (Females)
• Interface Standard RS-232C
• Loopback Data & Handshake
Parallel Loopback Tool
PARALLEL LOOPBACK CONNECTOR CONNECTION DIAGRAM
• Connector Types DB25P(Males)
• Interface Standard Centronics
• Loopback Status to Commands
PCG-723/729 (US)
DB9S
1
DCD
2
RX
3
TX
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RI
DB25P
-STROBE
1
14
2
D0
15
3
D1
16
4
D2
17
5
D3
18
6
D4
19
7
D5
20
D6 8
21
D7
9
22
-ACK
10
23
BUSY
11
24
PE
12
25
SLCT
13
-AUTO FD
-ERROR
-INT
-SLCT IN
GND
GND
GND
GND
GND
GND
GND
GND
2-2