LOCAL BASIC TRANSPONDER, 562-086
Note for All 2120 Transponders:
All transponders contain a switch package which is used to establish the proper baud rate and address for each
transponder. During installation, the setting of this switch package must be verified. Transponder baud rate
selection must agree with the baud rate of its associated communications channel (assigned at the CPU board,
Figure 1). The transponder address will be one less than the transponder number. For example, the address for
Transponder #7 would be address 6.
The switches on Local BT switch package Sl specify the BT address and baud rate as follows:
SWITCH
BINARY WEIGHT
1
1
2
2
3
4
Note: This numbering scheme is used
4
a
ONLY on the Local BT.
5
16
6
32
7&a
BAUD RATE
The Local BT is always transponder #l . Therefore, switches 1 through 6 should ALL be CLOSED.
Switches 7 and 6 specify the Local BT baud rate as follows:
BAUD RATE
Sl-7
s1-8
4800
CLOSED
2400
OPEN
1200
CLOSED
CLOSED
CLOSED
OPEN
22
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