2635A
Users Manual
D-4
Rx
Tx
DTR
GND
DSR
RTS
CTS
1
2
3
4
5
6
7
8
9
RS-232C
HYDRA
DB-9
Tx
Rx
RTS
CTS
DSR
GND
DCD
DTR
RI
COM
PC
DB-25
RS40 CABLE
(OR EQUAL)
FEMALE
MALE
PINS KEY
Tx – TRANSMIT
Rx – RECEIVE
RTS – REQUEST TO SEND
CTS – CLEAR TO SEND
DSR – DATA SET READY
GND – GROUND
DCD – DATA CARRIER DETECT
DTR – DATA TERMINAL READY
RI – RING INDICATOR
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
op74f.eps

Figure D-3. Hydra (DB-9) to PC (DB-25) RS-232 Connection