10
3.2.2 Receiving and automatic data rate switching
A call arrives at the data rate set on a subscriber’s equipment, and the setting of DIP
Switch SW3 determines if the call will be received or not when the data rate is different
from that set on the IB-681.
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t
3.3 V.25bis Command, Indication
For automatic calling, the HSD terminal directs the HSD modem with commands. Addi-
tionally the HSD modem directs the HSD terminal with indications. These commands and
indications are as below.
Commands
d
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s
w
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ll
A
Consecutive commands cannot be accepted. Commands use IA5 characters. Upper case
or lower case may be input, but case cannot be mixed.
Indications
n
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a
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I
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m
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N
n
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(
"
y
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li
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ll
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"
Indications are done with IA5 characters, in upper case only.