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User’s Guide AT Command Reference
2110212 Rev 1.0 Page 111
Table 12-5: WS-Registers in CDPD Mode (continued)
Register Description Range Default Units
70
PAD Inter-Character Timer
The timer is reset whenever input is received from the host
(DTE). On expiry of this timer the modem will terminate the
packet and forward it to the network.
NOTE: If the setting is very low and manual typing is used to
enter data, then access to the escape sequence (TIES) may be
lost. See Section 6.6.3.2 for details.
Value Meaning
0 Disabled (Default)
1 – 255 Timeout in tenths of a second.
0 – 255 0 0.1 s
72
PAD Input Buffer Editing Enable
Enables / disables the PAD’s capability to perform local
editing of CDPD Network bound data. If enabled, the PAD
will remove one character from the PAD’s input buffer upon
receipt of the character specified by +WS73 (PAD backspace
character).
If both On-line Echo (+WS62) and this register are enabled,
upon receipt of the backspace character (+WS73) the PAD
will echo the following character sequence to the host (DTE):
<backspace character> <SP (0x20)> <backspace character>
where the backspace character is that defined in +WS73
Value Meaning
0 Disabled
1 Enabled (Default)
0,1 1
73
PAD Input Buffer Backspace Character
Specifies the character to be used by the PAD as “backspace”
if local editing is enabled (+WS72)
0 – 255 8 <BS>
74
PAD Maximum Packet Length
Sets the maximum length of the packet assembly buffer.
When input reaches this length, the packet is terminated and
forwarded to the CDPD network.
This feature can be used to control packet forwarding if the
characteristics of the telemetry prevent both the forwarding
character (+WS63) and inter-character timer (+WS70)
mechanisms from being used.
This value is the data content exclusive of headers. UDP adds
28 bytes of header. TCP adds 40 bytes of header. Long
packet buffers may be fragmented into smaller IP packets if
required by network router limitations. If this happens, it is
transparent to the user.
1 – 1000 1000 Bytes