Table of Contents
Summary of Contents for Peek Traffic LPM-14-E
- Page 1 Peek Traffic Model LPM-14-E High Speed Low Power Modem REFERENCE MANUAL Peek Traffic, Inc. ©1996, Peek T r af f ic , Inc . All Rights Res er ved Rev. 1, J anuar y 16, 1997 1500 Nor th W as hington Blvd. Sar as ota FL 34236...
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Page 2: Table Of Contents
TABLE OF CONTENT GENERAL DESCRIPTION ................................... 1-1 1.1. INTRODUCTION ................................1-1 1.2. FEATURES ..................................1-1 1.3. INDICATORS ..................................1-1 1.4. INSTALLATION .................................. 1-1 1.5. INSTALLATION .................................. 1-1 AT COMMAND SUMMARY .................................. 2-1 AT COMMAND SET ..................................... 3-1 3.1. AT COMMAND GUIDELINES............................. 3-1 3.1.1. - Page 3 &Qn - Sync/Async Mode ....................... 3-11 &Rn - RTS/CTS Option ......................... 3-11 &Sn - DSR Override ........................3-12 &Tn - Test and Diagnostics ......................3-12 &V - Display Current Configuration and Stored Profiles..............3-12 &Wn - Store Current Configuration....................3-13 &Yn - Designate a Default Reset Profile..................
- Page 4 S19 - AutoSync Bit Mapped Options ....................4-4 S20 - AutoSync HDLC Address or BSC Sync Character ..............4-4 S21 - V.24/General Bit Mapped Options Status................4-4 S22 - Speaker/Results Bit Mapped Options Status ................. 4-4 S23 - General Bit Mapped Options Status..................4-4 S24 - Sleep Inactivity Timer ......................
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Page 5: General Description
A very efficient standby mode is also implemented in the hardware of the LPM-14-E to take advantage of the frequent idle periods typical in all remote data retrieval systems. Additionally, only wide temperature range components are used to build the LPM-14-E which are then conformal coated, allowing it to function in the harshest environments. -
Page 6: Indicators
Peek supplied wall mount AC transformer can be connected to the power jack on the LPM-14-E. A Dial-up line from the local phone company connects to the RJ-11 connector marked “Line,” and a telephone, which is to be shared with the LPM-14-E on the same dial-up line, can be connected to the RJ-11 connector marked “Phone.”... - Page 7 The DTE can set various operating parameters that are part of the modem’s profiles while the LPM-14-E is in the command mode. Also, the DTE can instruct the LPM-14-E to dial a phone number, answer an incoming call, show the current modem profile, etc. The LPM-14-E can be instructed to enter the data mode by the Dial, Answer or Online commands.
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Page 8: At Command Summary
AT COMMAND SUMMARY 2.1. BASIC AT COMMANDS Command Function Re-execute command. Go off-hook and attempt to answer a call. Select V.22 connection at 1200 bps. Select Bell 212A connection at 1200 bps. Return OK message. Dial modifier. Turn off command echo. Turn on command echo. - Page 9 Report basic call progress result codes, i.e., OK, CONNECT, RING, NO CARRIER, NO ANSWER and ERROR. Report basic call progress result codes and connections speeds, i.e., OK, CONNECT, RING, NO CARRIER, NO ANSWER, CONNECT XXXX, and ERROR. Report basic call progress result codes and connections speeds, i.e., OK, CONNECT, RING, NO CARRIER, NO ANSWER, CONNECT XXXX, and ERROR.
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Page 10: Ecc Commands
&T0 Terminate any test in progress. &T1 Initiate local analog loopback. &T2 Returns ERROR result code. &T3 Initiate local digital loopback. &T4 Allow remote digital loopback. &T5 Disallow remote digital loopback request. &T6 Request an RDL without self-test. &T7 Request an RDL with self-test. &T8 Initiate local analog loop with self-test. - Page 11 2.3. MNP 10 COMMANDS Disable MNP 10 link negotiation power adjustment. Enable MNP 10 link negotiation power adjustment. Enable cellular mode without power level adjustment during MNP 10 link negotiation. Select MNP 10 link negotiation at highest rate. Select MNP 10 link negotiation at 1200 bps. Select MNP 10 link negotiation at 4800 bps.
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Page 12: At Command Set
AT COMMAND SET 3.1. AT COMMAND GUIDELINES The basic AT commands used to control modem operation are defined in this section. These commands are summarized in section 2. The default values are typical of a fully configured modem supporting all data rates and options. 3.1.1. -
Page 13: At Commands
3.2. AT COMMAND SET The modem will respond to the commands detailed below. Parameters applicable to each command are listed with the command description. The defaults shown for each configuration command are those used in the factory profile. 3.2.1. AT Commands A/ - Re-execute Command The modem behaves as though the last command line had been re-sent by the DTE. -
Page 14: Dn - Dial
Dn - Dial This command directs the modem to go on-line, dial according to the string entered and attempt to establish a connection. If no dial string is supplied, the modem will go on-line and attempt the handshake in originate mode. If +FCLASS=0 is selected, the modem will behave as a data modem and will attempt to connect to another data modem. -
Page 15: En - Command Echo
En - Command Echo The modem enables or disables the echo of characters to the DTE according to the parameter supplied. The parameter value, if valid, is written to S14 bit 1. Disables command echo. Enables command echo. (Default.) Result Codes: n = 0 or 1. -
Page 16: In - Identification
In - Identification The modem reports to the DTE the requested result according to the command parameter. Reports product code (e.g., “14400”). Reports a precomputed checksum (see firmware release notes). Reports “OK”. Reports firmware revision (VX.XXX)-model code (A = 64K US, C = 128K US, D = 128K W-Class, E = 64K W- Class), interface type (S = serial;... -
Page 17: P - Set Pulse Dial Default
P - Set Pulse Dial Default This command forces pulse dialing until the next T dial modifier or T command is received. Sets S14 bit 5. As soon as a dial command is executed which explicitly specifies the dialing mode for that particular call (e.g., ATDT...), this command is overridden so that all future dialing will be tone dialed. -
Page 18: Wn - Connect Message Control
Wn - Connect Message Control This command controls the format of CONNECT messages. The parameter value, if valid, is written to S31 bits 2 and 3. Note that the Wn command can be overridden by register S95 bits (see S95 description). Upon connection, the modem reports only the DTE speed (e.g., CONNECT 19200). -
Page 19: Yn - Long Space Disconnect
Table 3-1. Result Codes Short Form Long Form n Value in ATXn Command CONNECT RING NO CARRIER ERROR CONNECT 1200 NO DIALTONE BUSY NO ANSWER CONNECT 0600 CONNECT 2400 CONNECT 4800 CONNECT 9600 CONNECT 7200 CONNECT 12000 CONNECT 14400 CONNECT 19200 CONNECT 38400 CONNECT 57600 CONNECT 75TX/1200RX... -
Page 20: Zn - Soft Reset And Restore Profile
Zn - Soft Reset and Restore Profile The modem performs a soft reset and restores the configuration profile according to the parameter supplied. If no parameter is specified, zero is assumed. Soft reset and restore stored profile 0. Soft reset and restore stored profile 1. Result Codes: n = 0 or 1. -
Page 21: Gn - Select Guard Tone
&Gn - Select Guard Tone The modem generates the guard tone selected by this command according to the parameter supplied (DPSK modulation modes only). The parameter value, if valid, is written to S23 bits 6 and 7. &G0,&G1 Disables guard tone. &G2 Selects 1800 Hz guard tone. -
Page 22: Pn - Select Pulse Dial Make/Break Ratio
&Pn - Select Pulse Dial Make/Break Ratio This command determines the make/break ratio used during pulse dialing. The parameter value, if valid, is written to S28 bits 3 and 4. &P0 Selects 39%-61% make/break ratio at 10 pulses per second. (Default.) &P1 Selects 33%-67% make/break ratio at 10 pulses per second. -
Page 23: Sn - Dsr Override
&Sn - DSR Override This command selects how the modem will control DSR. The parameter value, if valid, is written to S21 bit 6. &S0 DSR will remain ON at all times. (Default.) &S1 DSR will become active after answer tone has been detected and inactive after the carrier has been lost. Result Codes: n = 0 or 1. -
Page 24: Wn - Store Current Configuration
&Wn - Store Current Configuration Saves the current configuration, including S-Registers, in one of the two user profiles in NVRAM as denoted by the parameter value. The current configuration is comprised of a list of storable parameters illustrated in the &V command. These settings are restored to the active configuration upon receiving an Zn command or at power up (see &Yn command). -
Page 25: At% Commands
3.2.3. AT% Commands %En - Enable/Disable Line Quality Monitor and Auto-Retrain or Fallback/Fall Forward Controls whether or not the modem will automatically monitor the line quality and request a retrain (%E1) or fall back when line quality is insufficient or fall forward when line quality is sufficient (%E2). The parameter value, if valid, is written to S41 bits 2 and 6.If enabled, the modem attempts to retrain for a maximum of 30 seconds. -
Page 26: Gn - Modem-To-Modem Flow Control (Xon/Xoff)
3.2.4. AT\ Commands \Gn - Modem-to-Modem Flow Control (XON/XOFF) In non-error correction mode, the modem enables or disables the generation or recognition of modem-to-modem XON/XOFF flow control according to the parameter supplied. The parameter value, if valid, is written to S41 bit 3.In error correction mode, the setting of modem-to- modem XON/XOFF flow control is ignored. -
Page 27: Error Detection And Data Compression Commands
3.3. ERROR DETECTION AND DATA COMPRESSION COMMANDS 3.3.1. AT% Commands %C - Enable/Disable Data Compression Enables or disables data compression negotiation. The modem can only perform data compression on an error corrected link. The parameter value, if valid, is written to S41 bits 0 and 1. Disables data compression. -
Page 28: Mnp 10 Commands
3.4. MNP 10 COMMANDS 3.4.1. AT) Commands )Mn - Enable Cellular Power Level Adjustment Enables or disables automatic adjustment of the transmit power level to accommodate the signalling requirements of cellular telephone equipment. S40 bit 2 and S201 bit 6 are reset when )M0 is active; S40 bit 2 is set and S201 bit 6 is reset when )M1 is active; S40 bit 2 and S201 bit 6 are set when )M2 is active. -
Page 29: Kn - Mnp Extended Services
ERROR Otherwise. *Kn - MNP Extended Services Enables or disables conversion of a V.42 LAPM connection to an MNP 10 connection. The parameter value, if valid, is written to S40 bits 0 and 1. Disables V.42 LAPM to MNP 10 conversion. Enables V.42 LAPM to MNP 10 conversion. -
Page 30: S-Registers
S-REGISTERS The S-Registers are summarized in Table 4-1 along with their default values. Registers denoted with an ‘*’ in Table 4-1 may be stored in one of the two user profiles by entering the &Wn command. One of these profiles may be loaded at any time by using the Zn. All bit-mapped registers are read-only. -
Page 31: S-Register Definitions
4.2. S-REGISTER DEFINITIONS S0 - Number of Rings to Auto-Answer Sets the number of the rings required before the modem automatically answers a call. Setting this register to zero disables auto-answer mode. Range: 0-255 rings Default: S1 - Ring Counter S1 is incremented each time the modem detects a ring signal on the telephone line. -
Page 32: S8 - Pause Time For Dial Delay
S8 - Pause Time For Dial Delay Sets the time, in seconds, that the modem must pause when the “,” dial modifier is encountered in the dial string. Range: 0-255 seconds Default: S9 - Carrier Detect Response Time Sets the time, in tenths of a second, that the carrier must be present before the modem considers it valid and turns on RLSD. As this time is increased, there is less chance to detect a false carrier due to noise from the telephone line. -
Page 33: S17 - Reserved
S17 - Reserved S18 - Test Timer Sets the length of time, in seconds, that the modem conducts a test (commanded by &Tn) before returning to the command mode. If this register value is zero, the test will not automatically terminate; the test must be terminated from the command mode by issuing an &T0 or H command. -
Page 34: S26 - Rts To Cts Delay
S26 - RTS to CTS Delay Sets the time delay, in hundredths of a second, before the modem turns CTS ON after detecting an OFF-to-ON transition on RTS when &R0 is commanded. Pertains to synchronous operation only. Range: 0-255 hundredths of a second (Default to 1). S27 - Bit Mapped Options Status Indicates the status of command options. -
Page 35: S33 - Xoff Character
Default: 17 (11h) S33 - XOFF Character Sets the value of the XOFF character. Range: 0-255, ASCII decimal Default: 19 (13h) S34-S35 - Reserved S36 - LAPM Failure Control Default to 7 (00000111b) Bit 0-2 This value indicates what should happen upon a LAPM failure. These fallback options are initiated immediately upon connection if S48=128. -
Page 36: S39 - Flow Control Bit Mapped Options Status
S39 - Flow Control Bit Mapped Options Status Default: 3 (00000011b) Bits 0-2 Status of command options No flow control RTS/CTS (&K3) (Default.) XON/XOFF (&K4) Transparent XON (&K5) Both methods (&K6) Bits 3-7 Reserved S40 - General Bit Mapped Options Status Indicates the status of command options. -
Page 37: S82 - Break Handling Options
S82 - Break Handling Options S82 is for compatibility purposes only, changing this register will not have any affect. S86 - Call Failure Reason Code When the modem issues a NO CARRIER result code, a value is written to this S-Register to help determine the reason for the failed connection. -
Page 38: Dte-To-Modem Transmit Data Stream
FAX CLASS 1 COMMANDS 5.1. FAX I/O PROCESSING The fax I/O interface supports asynchronous serial and parallel interfaces. The interface rate is 19200 bps. The character format is 8 bits data, no parity, and 1 stop bit. Start and stop elements are removed from the transmit data and added to the receive data. Both transmit and receive data are buffered. -
Page 39: Fax Control Reception
5.1.7. Fax Control Reception Fax control reception is initiated using the AT+FRH=n command. After this command is issued, the modem looks for carrier in the modulation scheme specified by the parameter n. If no carrier is detected before the period of time specified by register S7 expires, the modem generates the NO CARRIER message and returns to command mode. -
Page 40: Fclass=N - Select Service Class
from the remote is discarded. If loss of DTR is detected while &D2 is in effect, the modem goes on-hook, sends <DLE><ETX> followed by OK result code to the DTE, and returns to command mode. If the modem detects a DTR drop while &D3 is in effect, the modem performs a warm reset. - Page 41 +FTM=145 V.17 14400 bps long +FTM=146 V.17 14400 bps short...
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Page 42: Frm=N - Receive Data
+FRM=n - Receive Data +FRM=n causes the modem to enter the receiver mode using the modulation defined below. An ERROR response code results if this command is issued while the modem is on-hook. Parameters: See Command options Command options: +FRM=24 V.27 ter 2400 bps +FRM=48 V.27 ter 4800 bps...
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