73D2248A View Datasheet(PDF) - TDK Corporation
Part Name
Description
Manufacturer
73D2248A Datasheet PDF : 9 Pages
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73D2248A/2348A
MNP5, V.42bis Datacom
Modem Device Set
AT COMMAND SUMMARY
Command
AT
<CR>
A
A/
B0
B1
D
DS=n
E0
E1
H0
H1
I0
I1
I2
L0 or L1
L2
L3
M0
M1
M2
M3
O0
O1
Q0
Q1
Sr
Sr=n
Sr?
V0
V1
W0
W1
X0
X1
X2
X3
Description
command prefix - precedes command line
carriage return character - terminates command line
go into answer mode; attempt to go to on-line state
re-execute previous command line;
not preceded by AT nor followed by <CR>
select CCITT V.22 and V.21standards for 1200 and
300 bit/s communications
select Bell 212A and Bell 103 standards for 1200
and 300 bit/s communicatios
dial number that follows; attempt to go to on-line state,
originate mode
dial stored number in location “n” (0-3)
Disable character echo in command state
Enable character echo in command state
go on hook (hang up)
go off hook; operate auxiliary relay
request product identification code
perform checksum on firmware ROM; return checksum
perform checksum on firmware ROM;
returns OK or ERROR result codes
low speaker volume
medium speaker volume
high speaker volume
speaker off
speaker on until carrier detected
speaker always on
speaker on until carrier detected, except during dialing
go to on-line state
go to on-line state and initiate equalizer retrain at
2400 bit/s
modem returns result codes
modem does not return result codes
set pointer to register “r”
set register “r” to value “n”
display value stored in register “r”
display result codes in numeric form
display result codes in verbose form (as words)
negotiation progress result codes not returned
negotiation progress result codes returned
enable features represented by result codes 0-4
enable features represented by result codes 0-5, 10-12
enable features represented by result codes 0-6, 10-12
enable features represented by result codes 0-5, 7, 10-12
Command
X4
Y0
Y1
Z0
&C0
&C1
&D0
&D1
&D2
&D3
&F
&G0
&G1
&G2
&K
&M0
&M1
&M2
&M3
&Q5
&Q6
&T0
&T1
&T3
&T4
&T5
&T6
&T7
&T8
&V
&W0
&X0
&X1
&X2
&Zn=x
Description
enable features represented by result codes 0-7, 10-12
disable long space disconnect
enable long space disconnect
reset modem
assume data carrier always present
track presence of data carrier
ignore DTR signal
assume command st ate when an on-to-off
transition of DTR occurs
hang up and assume command state when an
on-to-off transition of DTR occurs
reset when an on-to-off transition of DTR occurs
recall factory settings as active configuration
no guard tone
550 Hz guard tone
1800 Hz guard tone
flow control method
asynchronous mode
synchronous mode 1
synchronous mode 2
synchronous mode 3
error control mode
automatic speed buffering (ASB)
terminate test in progress
initiate local analog loopback
initiate local digital loopback
grant request from remote modem for RDL
deny request from remote modem for RDL
initiate remote digital loopback
initiate remote digital loopback with self test
initiate local analog loopback with self test
view active configuration, user profiles, and stored
numbers
save storable parameters of active configuration
modem provides transmit clock signal
data terminal provides transmit clock signal
receive carrier provides transmit clock signal
store phone number “x” in location “n” (0-3)
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