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Section 8: Wireless
Section 8:
Wireless
Wireless Wiring Diagram
7
8
+20mA
–20mA
6
5
CL (+)
CL (–)
TX 422A (+)
TX 422B (–)
RX 422A
RX 422B
3
2
TXD
GND
232 RXD
GND
Indicator TransceiverPin
1
2
5
6
+20mA
–20mA
VCC
GND
CL(–)
CL(+)
JUMP
Indicators with Active
20 mA Output
Indicators with Passive
20 mA Output
Indicators with
RS232 Output
Indicators with
RS422/RS485 Output
Note: Mount all units in a direct line of site with each other aith all antennas going vertically (up or down is OK)
XT400 Input Output Setup
The XT400 units have the ability for up to 4 lines of digital IO line passing, useful for stop and go light control. A
built in Switch can be added for inputs. Relays can be added to outputs for remote zero and remote printing for
many indicators. Each transceiver can either be set up for inputs or outputs, but not both. To make a transceiver
accept digital inputs place the blue jumper on IN and place the two MCT62 ICs in the sockets under the label
“IN”, closest to the heat sink on the far right hand side. To make the transceiver output TTL levels place the blue
jumper on OUT and place the two MCT62 ICs in the sockets under the label “OUT”.
*Any serial devices can be connected using XT Series Wireless transceivers. PCs can be connected to printers
or multiple indicators can be networked together… Matko remotes are not required for a wireless system.
RF Exposure
WARNING: To satisfy FCC RF exposure requirements for mobile transmitting devices, a separation distance of
20 cm or more should be maintained between the antenna of this device and persons during device operation.
To ensure compliance, operations at closer than this distance is not recommended. The antenna used for this
transmitter must not be co-located in conjunction with any other antenna or transmitter. The preceding
statement must be included as a CAUTION statement in OEM product manuals in order to alert users of FCC
RF Exposure compliance.
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