Rs-422 / Rs-485 Terminal Block Connection - ATEN US3344I User Manual

US3344I User Manual
5. Prepare a power input by either:
a) Connecting the DC Terminal Block for Power Input**: Insert DC + and -
wires (9 to 24V DC) to the DC terminal block adapter according to the
labeled sign. Tighten the slot screws. Plug the terminal block adapter to
US3344I; Or
b) (Optional) Connecting a power adapter*** to the DC power input jack.
*You can connect both Remote Port Selector and Serial Command Port
Selectors for port selection.
**If both power inputs are connected, power from the DC jack will be prioritized.
***Available for purchase separately from your closest ATEN dealer (Part No.:
0AD8-8012-33MG)

RS-422 / RS-485 Terminal Block Connection

For RS-422 / RS-485 connection, please connect the wires according to the
diagram below and the following table.
For RS-422 / RS-485 commands, please refer to RS-422 / RS-485 Port
Selection on page 11.
Pin
1
2
3
4
5
For RS422 connection, the T +/- terminals of your selector system must be
connected to the R +/- terminals of the terminal block, and vice versa (e.g. T+
to R+, T- to R-)
If you wish to have centralized control, you may utilize an ATEN Control Box
(e.g. 2A-485, VK2100) where it can issue serial commands to control the unit.
Please also connect the RS-422 / RS-485 interface according to the diagram
and table above.
8
RS-422 (4-wire)
GND
TxD - (A)
TxD + (B)
RxD + (B)
RxD - (A)
RS-485 (2-wire)
GND
-
-
Data + (A)
Data - (B)