CPC5710NTR Clare, CPC5710NTR Datasheet - Page 7

• Manufacturer Part Number: CPC5710NTR
• Description: IC PHONE LINE MONITOR 8-SOIC
• Manufacturer: Clare
• Series: LITELINK®r

Specifications of CPC5710NTR

• Function: Phone Line Monitor (PLM)
• Number Of Circuits: 1
• Voltage - Supply: 3 V ~ 5.5 V
• Current - Supply: 10mA
• Power (watts): 300mW
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Includes: Full-Wave Ring Detector
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Interface: -
• Other names: CLA301TR; CPC5710NTR

Command lines are typed to the modem from the termi-
nal when the modem is in the Idle or Command state.
The modem does not execute any of the commands in
a command line until after the command line is ended
by the end of line character <CR>. A command line is a
string of char-acters starting with the A and T characters
and ending with a special end of line character, <CR>.
Characters typed before the AT are ignored. Command
lines contain at most 40 characters after the AT, not
counting spaces. The modem does not execute any of
the commands in a command line that is too long.
To Echo command line characters, use the E1 com-
mand.
Typing mistakes can be aborted by using a special
Back-Space character, <BS>, after the initial A and T
characters have been entered.
A partial command line can be aborted by typing a Ctrl-
X character. The modem returns an OK result code and
ig-nores the partial AT command line.
Command lines may contain several commands one
after another. The Answer (A), Dial (D), and Go On-Line
(O) commands usually cause any following commands
in the command line to be ignored.
Command Line Execution
The characters in a command line are executed one at
a time. Any unexpected characters, except control char-
acters, stop command line execution and return an
ERROR result code. Unexpected characters include
numbers out-side the range of values accepted by the
command. All control characters in a command line
except Ctrl-X and the special characters such as <CR>
and <BS> are ignored.
The numerical argument of a command is assumed to
be 0 if it was not provided. For example, the commands
ATH<CR> and ATH0<CR> both hang up the telephone
line.
When the modem has executed a command line the
result code of the last command executed is returned to
the terminal. If the value to be written to a modem S-reg-
ister is outside the range of values accepted by the S-reg-
ister then its value is set to the nearest allowed value.
Leading zeros in numeric arguments, including S-regis-
ter numbers, are ignored. For example, ATS1=2 and
ATS01=2 both set S-register S1 to 2.
All numeric arguments, including S-register numbers,
Rev. 2
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are decimal (base 10).
AT Command Prefix
Each modem command line begins with the letters A
and T. The modem uses these characters to determine
the data rate and parity of data from the terminal.
A/Repeat Last Command
To repeat the commands in the last command line type
the letters A and / instead of A and T.
<CR>End Of Line Character
This character is typed to end a command line. The
value of the <CR> character is stored in S-register S3.
The de-fault is 13, the ASCII carriage return character.
When the <CR> character is entered, the modem exe-
cutes the commands in the command line.
Note: default values in the AT Command Tables are
denoted by bold face type.
CPC2400E
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