IBM 4851 514 Service Guide - Page 126

Serial, connectors

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System specifications and planning information Updated October, 2008 Serial connectors 9-pin serial connector (3): The 9-pin serial connector is a male connector. 1 5 6 9 Table 21. Assignment for 9-pin serial connector Pin Signal I/O Pin Signal I/O 1 Carrier detect I 6 Data set ready I 2 Receive data I 7 Request to send O 3 Transmit data O 8 Clear to send I 4 Data terminal ready O 9 Ring indicator I 5 Signal ground 15-pin serial connector: The 15-pin serial connector is a female connector. 8 1 15 9 Table 22. Assignments for 15-pin serial connector Pin Connector Pin 1 Carrier detect 8, 9 2 3 4 5 6 7, 10 Receive data 11 Transmit data 12 Data terminal ready 13 Ground 14 Ground 15 +5 V dc at 0.5 A maximum Connector +12 V dc at 0.5 A maximum Distributed display present Data set ready Request to send Clear to send Ring indicate 110 SurePOS 500 Model 514

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Serial
connectors
9-pin
serial
connector
(3):
The
9-pin
serial
connector
is
a
male
connector.
1
5
6
9
Table
21.
Assignment
for
9-pin
serial
connector
Pin
Signal
I/O
Pin
Signal
I/O
1
Carrier
detect
I
6
Data
set
ready
I
2
Receive
data
I
7
Request
to
send
O
3
Transmit
data
O
8
Clear
to
send
I
4
Data
terminal
ready
O
9
Ring
indicator
I
5
Signal
ground
15-pin
serial
connector:
The
15-pin
serial
connector
is
a
female
connector.
8
15
9
1
Table
22.
Assignments
for
15-pin
serial
connector
Pin
Connector
Pin
Connector
1
Carrier
detect
8,
9
+12
V
dc
at
0.5
A
maximum
2
Receive
data
11
Distributed
display
present
3
Transmit
data
12
Data
set
ready
4
Data
terminal
ready
13
Request
to
send
5
Ground
14
Clear
to
send
6
Ground
15
Ring
indicate
7,
10
+5
V
dc
at
0.5
A
maximum
System
specifications
and
planning
information
Updated
October,
2008
110
SurePOS
500
Model
514