AMX AXC-232 RS-232422485 INTERFACE CARD Manual do Utilizador Página 3

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RS-232/422 Interface
Page 3
©
1994 AMX Corporation. 11995 Forestgate Drive, Dallas, Texas 75243 800/952-6995 FAX 972/907-2053
All trademarks contained in this document are the property of their respective owners.
FRONT PANEL
LEDs
AXlink
The green LED indicates AXlink power and data status, as follows:
One blink per second indicates power is active and AXlink is functional.
Full on indicates power is active and AXlink communication is not functional.
TX
The red TX LED blinks to indicate that the AXB-232+ is transmitting RS-232, RS-422, or RS-
485 data.
RX
The red RX LED blinks to indicate that the AXB 232+ has received RS-232, RS-422, or RS-485
data.
NOTE: The RX LED blinks even if the data is incorrect.
DIP Switches
Device
Use the eight-position Device DIP switch to set the AXB-232+ as an AXlink device. It can be
one of 255 devices in an AXCESS, AXCENT, or AXCENT
2
system. The device number must
match the assignment of the device in the AXCESS program. Set the device number with the
total of all ON (down) positions. (See the chart below.) As an example, the DIP switch below
defines device number 97 (1+32+64=97).
1
2
3
4
5
6
7
8
ON
Switch 1 2 3 4 5 6 7 8
Value 1 2 4 8 16 32 64 128
AMX standard device numbers are assigned as follows.
Cards are 1 through 95.
Boxes are 96 through 127.
Panels are 128 through 255.
NOTE: The device number takes effect only on power-up.
If you later change the device number, remove and reconnect the AXlink connector. This
enters the new device number into memory.
RS232/422
Use the eight-position RS232/422 DIP switch to set the communications parameters. Set the
with the ON and OFF positions. (Refer to the following chart.)
1
2
3
4
5
6
7
8
ON
Switch 1 2 3 4 5 6 7 8
Function Stop Bits Data Bits Parity Baud Rate
Setting Off Off Off Off Off Off Off Off
Value 2 bits 7 bits Unused 300
On On On Off Off On Off Off
1 bit 8 bits Unused 600
Off On Off Off On Off
Unused 1,200
On On Off On On Off
Unused 2,400
Off Off On Off Off On
Mark 4,800
On Off On On Off On
Even 9,600
Off On On Off On On
Odd 19,200
On On On On On On
None 38,400
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