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To simplify connections to other devices, each port on the DS-102 is
equipped with a jumper block that allows the port to be configured as
either a DTE- or DCE-type device. This allows the DS-102 to
communicate with either DTE- or DCE-type devices without using a null
modem cable. J7 is used for Serial 1 and J8 is used for Serial 2. The
DTE/DCE selection jumper blocks are illustrated in Figure 12.
1
6
5
4
8
7
2
3 9
10
11
12
pin 3
RxD
pin 7
CTS
pin 4
DSR
TxD
pin 2
RTS
pin 8
DTR
pin 6
J7 -- Serial 1
J8 -- Serial 2
These jumper blocks are used to
connect RS-232 signals to the
various pins of the D-9 connectors.
1
6
5
4
8
7
2
3 9
10
11
12
pin 3
RxD
pin 7
CTS
pin 4
DSR
TxD
pin 2
RTS
pin 8
DTR
pin 6
1
6
5
4
8
7
2
3 9
10
11
12
pin 3
RxD
pin 7
CTS
pin 4
DSR
TxD
pin 2
RTS
pin 8
DTR
pin 6
DTE configuration
(factory default)
DCE configuration
Figure 12 --- DTE or DCE output selection
(Jumpers J7 and J8)
Quatech
DS-102 User's Manual
11