Examples:
Example 1 (default configuration)
Sending Unit Address = 1234
Receiving Unit Address = 1234
Receiving Unit’s Address Mask = FFFF
Result: Unit will receive the data, because the addresses identically match. When the
addresses are identical, the value of the mask is not important.
Notes: This is the default configuration. All units have address 1234, and all modems will
talk to all other modems with address 1234.
Example 2 (a configuration that won’t work)
Sending Unit Address =
1236
Receiving Unit Address =
1234
Receiving Unit’s Address Mask =
FFFF
Result: No data will be received, because the address do not match, and the address
mask of FFFF requires that all digits in the address match. .
Example 3 (able to receive a data from a group, 1230 – 123F)
Sending Unit Address =
1236
Receiving Unit Address =
1234
Receiving Unit’s Address Mask =
FFF0
Result: Data will be received. 1236 ANDed with FFF0 is 1230. 1234 ANDed with FFF0
is 1230. The results of the ANDing match, and thus the data will be received.
Example 4 (able to receive from a group, xx34 where xx is any two digits)
Sending Unit Address =
2234
Receiving Unit Address =
1234
Receiving Unit’s Address Mask =
00FF
Result: Data will be received. 2234 AND 00FF equals 0034. 1234 AND 00FF equals
0034, therefore they match. The results of the ANDing match, and thus the data will be
received.
