Functional Descriptions ......
Tone
Allocations
Character
0 thro' 9
Function
Decimal digits in the address or data fields.
A
B
C
D
E
F
GROUP character in the address field or ”AHEX” in the data field.
Data prefix tone or “BHEX” in the data field.
REMOTE RESET character address code suffix or “CHEX” in the data field
REMOTE RESET character address code suffix or “DHEX” in the data field
REPEAT character
“FHEX” in the data field
Table 8 Tone Allocations
The international standard for calling a specific group of units by inserting the GROUP-
Tone (‘A’) into a Selcall.
The GROUP-Tone (‘A’) represents all tone digits from 0 to 9. Any character in the Selcall
address can be replaced by a GROUP-Tone (‘A’); a second consecutive GROUP-Tone
should be replaced by a REPEAT-Tone. The flexibility of placing GROUP-Tones within a
Selcall Address allows more user-groups to be set-up.
International
GROUP
CALL
Example:
Address Sequence
Addressed Units
1 2 3 4 A
1 2 A 4 5
1 A 3 4 A
1 2 A E A
1 2 3 4 0 to 1 2 3 4 9
1 2 0 4 5 to 1 2 9 4 5
1 0 3 4 0 to 1 9 3 4 9
1 2 0 0 0 to 1 2 9 9 9
To provide compatibility with Selcall systems where the only characters permitted to
follow a GROUP-Tone (‘A’) in a sequence are other GROUP- or REPEAT-Tones.
Under this protocol, the first GROUP-Tone is extended to 3 times the normal system
length.
To transmit to such a system as opposed to an International system, the Extended
GROUP-Tone (Tx) option must be selected at initial configuration. This method restricts
the number of Groups available.
Non-
International
GROUP
CALL
Example:
Address Sequence
Addressed Units
1 2 3 4 A
1 2 3 A E
1 2 A E A
1 A E A E
A E A E A
1 2 3 4 0 to 1 2 3 4 9
1 2 3 0 0 to 1 2 3 9 9
1 2 0 0 0 to 1 2 9 9 9
1 0 0 0 0 to 1 9 9 9 9
0 0 0 0 0 to 9 9 9 9 9
The CM1481 is able to transmit and respond to both International and Non-International
GROUP-Calls.
The Transpond facility (Tp) is not available for GROUP-Calls.
The GROUP-Call character can be configured into any address set-up.
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CMLMICRO [ CML MICROCIRCUITS ]
