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Connection
The interface can be selected from the DIP switches SW1 as can baudrates for serial interfaces and the Address of
the base station.
SW1 Settings (T24-BSi only)
Switch positions 1 to 4 select the base station Address. This should normally be 1.
1
2
Address
Off
Off
1
On
Off
2
Off
On
3
On
On
4
Off
Off
5
On
Off
6
Off
On
7
On
On
8
Off
Off
9
On
Off
10
Off
On
11
On
On
12
Off
Off
13
On
Off
14
Off
On
15
On
On
16
Switch positions 5 to 7 set whether serial or USB is used. If USB is not selected then the chosen switch settings
control the baudrate for the serial interface. Whether the serial interface is RS485 or RS232 is selected by switch
position 8.
5
6
Baudrate / USB
Off
Off
USB
On
Off
9600
Off
On
19200
On
On
38400
Off
Off
57600
On
Off
115200
Off
On
230400
On
On
460800
NOTE:
A baudrate of 9600 (and in some cases 19200) is not suitable for 2 way communication with remote devices as it is too slow and causes
timeouts. This baudrate has been included to enable the base station to be connected to a 9600 baud device to allow low rate Data
Provider packets to be received.
At any rate below 230400 is may be possible to lose packets at high data rates as the serial cannot keep pace with the radio
transmissions.
If USB is not selected as the interface (Switch positions 5 to 7) then this switch position selects whether the serial
interface is RS232 or RS485.
8
232/485
Off
RS232
On
RS485
Mantracourt Electronics Limited T24 Technical Manual
3
4
Off
Off
Off
Off
Off
Off
Off
Off
On
Off
On
Off
On
Off
On
Off
Off
On
Off
On
Off
On
Off
On
On
On
On
On
On
On
On
On
7
Off
Off
Off
Off
On
On
On
On
16
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