Connect Tech Xtreme/104 Opto User Manual - page 17
Xtreme/104 Opto User’s Manual, Connect Tech Inc.
17
Revision
0.05
Table 4: DB-9 cable connector pinouts
Pin
No.
RS-232 Signal
Direction
RS-422/485 Signal
Direction
1 NC
NC
RxD
(+)
input
2 RxD
input
RxD
(-)
input
3 TxD
output
TxD
(+)
output
4 NC
NC
TxD
(-)
output
5
Isolated Gnd
signal gnd
Isolated Gnd
signal reference
6 NC
NC
CTS
(-)
input
7 RTS
output
RTS
(+)
output
8 CTS
input
CTS
(+)
input
9 NC
NC
RTS
(-)
output
Part Number: CAB104
You must connect pin 5 (the isolated ground) to the
ground of the connected external device.
The red stripe on the CAB104 cable indicates pin 1 on
the 10 pin header connector.
Ensure that you terminate the CTS signal if not required
by your application. This is commonly done by
connecting CTS to RTS. Failure to do so may result in a
loss of a performance on your Xtreme/104 Opto adapter.
Factory Default Settings
Function
Factory Setting
I/O Port Address
JB3 is set for I/O port addresses 300, 308, 310, 318 hex and the
status port disabled (positions A, B, C, not jumpered).
Status Port Address
JB3 is set for the status port disabled (position F not jumpered).
Baud Rate
JB3 is set for the maximum baud rate of 115.2 Kbps (position G not
jumpered).
IRQs
1. JB3 set for all ports interrupting on a single interrupt (positions
D & E not jumpered).
2. JB1 and JB2 jumper blocks set for no interrupts (all positions
not jumpered).
Electrical Interface
JB4, JB5, JB6 and JB7 set for all ports RS-
422/485
(position B not
jumpered).
RS-
422/485
Mode
1. JB4, JB5, JB6 and JB7 set for all ports running in full duplex
mode (positions A and C not jumpered).
2. J1 and J2 are not jumpered.
Termination
JB4, JB5, JB6 and JB7 set for all ports being not terminated
(positions D, E, F, G, H, and I, not jumpered).
and
for the locations of these jumper blocks.
Revisions A and B of the Xtreme/104 Opto adapter do not have bias resistors
Revisions A & B of the Xtreme/104 Opto adapter do not have positions H & I on jumper
blocks, JB4, JB5, JB6, and JB7
Male DB-9 Connector
1
5
6
9