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S38 – Delay Before Forced Hang Up (Not stored with the AT&W command)
This register specifies the delay between the modem's receipt of the H command to disconnect (or
ON-to-OFF transition of DTR if the modem is programmed to follow the signal), and the disconnect
operation. This register can be used to ensure that data in the modem buffer is sent before the modem
disconnects. 255 makes the modem stay connected until the buffer is empty, or the carrier is lost.
Default 20 {0-255} (seconds).
S39 – Bit mapped register (Read Only Register)
Bit
0..2
3..7
S40 – Bit mapped register (Read Only Register)
Bit
0
1
2
3..5
6..7
6178-2203
Interval
Default
0,3..6
–
Interval
Default
0..1
0..1
0..1
0..5
0..3
Description
3
Flow control:
0-No flow control (AT&K0)
3-RTS/CTS flow control (AT&K3)
4-XON/XOFF flow control (AT&K4)
5-Transparent XON/XOFF
flow control (AT&K5)
6-RTS/CTS and XON/XOFF
flow control (AT&K6)
–
Reserved
Description
MNP extended services:
0
0-No conversion from V.42 to MNP10
(AT-K0)
1-Conversion from V.42 to MNP10
(AT-K1)
"Cellular" MNP10 effect level
0
adjustment:
0-Non effect level adjustment (AT)M0)
1- effect level adjustment during
MNP10 negotiation (AT)M1)
MNP connect speed:
0
0-Negotiation with highest possible
speed (AT*H0)
1-Negotiation with 1200 Baud
(AT*H1)
5
"Break" handling:
0-AT\K0
1-AT\K1
2-AT\K2
3-AT\K3
4-AT\K4
5-AT\K5
2
MNP block size:
0-64 characters (AT\A0)
1-128 characters (AT\A1)
2-192 characters (AT\A2)
3-256 characters (AT\A3)
43
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