User`s guide

62 Chapter 6 Special Features: Software Selectable MEI
Note: Select Tx Control > Always on if this device is the only one transmitting on
one wire pair, such as a single master in a master/slave configuration or if
only tow devices are attached. Use Tx Control > Auto if multiple devices need
to share the bus in a dual master scenario or if the device is acting as slave in
a multidrop environment. See "Four-Wire Multi-Drop Network Scenarios" on
page 63 for more information about multi-drop scenarios.
6. Click Apply and the settings will take effect.
7. Repeat steps 2-6 for each port.
8. If you have not done so already, connect your serial device to the
appropriate serial port.
Table for Pin Outs
Pin
Number
EIA-232
Signal
Standard 10-Pin
EIA-422/485
Signal
(4/8 Wire)
Optional 8 pin
EIA-422/485
Signal
(Alt-4-Wire)
EIA-485 Signal
(2-Wire Mode)
01 RI TXD- (B)
02 DSR RxD- (B) RxD- (B) Data- (B)
03 RTS RTS+ (A) TxD+ (A)
04 CGND CGND CGND CGND
05 /TxD TxD+ (A)
06 /RxD RxD+ (A) RxD+ (A) Data+ (A)
07 SGND SGND SGND SGND
08 CTS CTS+
09 DTR RTS- (B) TxD- (B)