Fluke 5520A Operator's Manual page 402

5520A
Operators Manual
5520A
SERIAL 1
FROM HOST
Rx
Tx
DTR
GND
RTS
CTS
SERIAL 2
TO UUT
RLSD
Rx
Tx
GND
DSR
RTS
CTS
C-4
NULL MODEM CABLE
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
MODEM CABLE
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
Figure C-5. Serial Port Connections (DB-9/DB-25)
PC
COM
1 1
2 2
Tx
3 3
Rx
4 4
RTS
5 5
CTS
6 6
DSR
7 7
GND
8 8
DCD
9 9
10 10
11 11
12 12
13 13
14 14
15 15
16 16
17 17
18 18
19 19
20 20
DTR
21 21
22 22
RI
23 23
24 24
25 25
UUT
RS-232
1 1
2 2
Tx
3 3
Rx
4 4
RTS
5 5
CTS
6 6
DSR
7 7
GND
8
8
DCD
9 9
10 10
11
11
12 12
13 13
14
14
15 15
16 16
17 17
18 18
19 19
20 20
DTR
21 21
22 22
RI
23 23
24 24
25 25
FE-05.EPS