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DLM4100 User’s Manual

P/N 161-09977-001B

+MS- Select Modulation

– AT+MS sets the modulation and available data rates in the format shown below

AT+MS= a, b, c, d, e, f <CR>

a=Modulation type

B103- Bell 103 (300 BPS)

B212- Bell 212 (1200 BPS)

V21- V.21(300 BPS)

V22- V.22 (1200 BPS)

V22B- V.22bis (1200 or 2400 BPS)

V23- V.23 (1200 Tx/ 75 RX or 75 Tx/ 1200 Rx)

V32- V.32 (4800 or 9600 BPS)

V32B- V.32bis (4800 to 14400 BPS)

V34- V.34bis (16800 to 33600 BPS)

b= Auto detection

0- Automatic Negotiation Disabled

1- Automatic Negotiation Enabled

c= Minimum receive Data Rate (300 to 33600 BPS)

d= Maximum receive Data Rate (300 to 33600 BPS)

e= Minimum transmit Data Rate (300 to 33600 BPS)

f= Maximum transmit Data Rate (300 to 33600 BPS)

Modem Registers

S0 Answer on nth Ring:

S0 sets the modem to automatically answer on the nth ring. Setting S0 to 0

disables automatic answer.

Range: 0 to 255

Units:

Rings

Default:

S1 Ring Count:

S1 is a read-only register showing the number of rings detected. If a ring is not detected

within 8 seconds, S1 reset to zero.

Range: 0 to 255

Units:

Rings

Default:

S2 Escape Character:

S2 determines the ASCII escape character. Values of 0-127 select valid ASCII

escape characters; values from 128-255 disable the escape sequence.

Range: 0 to 255

Units: ASCII Character

Default:

Содержание DLM4100

Страница 1: ...SER GUIDE I NDUSTRIAL D ATA C OMMUNICATIONS It is essential that all instructions contained in the User Guide are followed precisely to ensure proper operation of equipment Compact Dial Up Modem DLM4100 ...

Страница 2: ...DATA LINC GROUP PN 161 09977 001B Product User Guide ...

Страница 3: ...1 None Connections Cable connections are all made on one end of the unit The DB 9 female see pinout below on the left is for the RS 232 data Note RS 485 and RS 422 models are also available The supplied wall transformer plugs into the barrel jack for supplying power to the unit For alternate power methods see barrel jack pinout below The RJ 11 jack on the right is the telephone line connection Onl...

Страница 4: ...cape sequence Hang up ATH0 Note Do not use any initialization string at all when commanding the modem to dial Any command other than the ATDT followed by the number being dialed can change the pre configuration of the DLM4100 and make it inoperative for PLC communications Specifications Input Voltage 8 to 15 VDC Current Consumption Max 260mA Ring Voltage Detected 38 to 150 RMS Ring Frequency Detec...

Страница 5: ...g tone Pause for the duration of S8 Wait for silence Switch hook flash Return to the command state En Command Echo ATEn determines whether commands will be echoed back to the host n 0 Do not echo commands n 1 Enable command echo Hn Switch Hook Control ATHn opens and closes the modem s hook switch n 0 Switch hook relay opens n 1 Switch hook relay closes Ln Speaker Volume ATLn Sets the amplitude of ...

Страница 6: ...mines whether the data rate reported in the Connect response is the host date rate the link data rate or whether both are provided along with the error control and data compression protocols negotiated n 0 Send Connect at DTE rate n 1 Report line speed DTE speed and Link protocol n 2 Connect reports Link speed Xn Result Code Set ATXn selects which set of result codes the modem may send n 0 Result ...

Страница 7: ... break Ratio AT Pn determines the specific pulse dialing parameters used by the modem n 0 39 61 10pps n 1 33 67 10pps n 2 39 61 20pps n 3 33 67 20pps Qn Line Connection AT Qn determines if error control or data buffering are active on the link n 0 Direct mode no data buffering n 5 Use Error Correction n 6 Normal Mode speed buffering Sn DSR Operation AT Sn sets the operation of the DSR signal n 0 D...

Страница 8: ... up n 1 Recall profile 1 on power up Zn x Store telephone number x in memory location n En Line Quality Monitor Auto Retrain AT En determines if the modem will monitor line quality during a connection and initiate a retrain if quality drops below acceptable levels n 0 Disabled n 1 Enabled n 2 Line quality fall back fall forward L Read Received Signal Level AT L permits the user to read the magnitu...

Страница 9: ...mmediately send break to the host n 3 Same as n 2 n 4 Send break in sequence with data n 5 Same as n 2 Host initiates break on reliable link n 0 Purge buffers and immediately transmit break n 1 Same as n 0 n 2 Immediately transmit break n 3 Same as n 1 n 4 Transmit break in sequence with data n 5 Same as n 4 Nn Error Control Selection AT Nn determines how the modem will handle error control negoti...

Страница 10: ...ta Rate 300 to 33600 BPS d Maximum receive Data Rate 300 to 33600 BPS e Minimum transmit Data Rate 300 to 33600 BPS f Maximum transmit Data Rate 300 to 33600 BPS Modem Registers S0 Answer on nth Ring S0 sets the modem to automatically answer on the nth ring Setting S0 to 0 disables automatic answer Range 0 to 255 Units Rings Default 0 S1 Ring Count S1 is a read only register showing the number of ...

Страница 11: ...k space to edit the command line Range 0 to 32 Units ASCII Character Default 8 back space S6 Dial Tone Wait Time S6 determines how long the modem waits for dial tone before dialing begins The dial tone wait time cannot be set to less than two seconds Range 2 to 255 Units Seconds Default 2 S7 Wait for Carrier after Dialing S7 determines how long the modem waits for a valid carrier signal after dial...

Страница 12: ... S12 sets the escape sequence guard timer If characters are received before or after the escape sequence within the guard timer the modem aborts the escape attempt and remains in data mode Range 0 to 255 Units 0 02 Seconds Default 50 S14 General Bit Mapped Options S14 reflects the state of several AT commands Bit 0 4 6 not used Bit 1 0 Echo Disabled ATE0 1 Echo Active ATE1 Bit 2 0 Send result code...

Страница 13: ... 2 3 0 Speaker off ATM0 1 Speaker off with carrier ATM1 2 Speaker always on ATM2 3 Speaker on during handshake ATM3 Bit 4 6 0 Basic result codes ATX0 4 Connect speed result codes ATX1 5 No blind dial ATX2 6 Busy detection ATX3 7 Full result codes ATX4 Bit 7 Not used S23 General Bit Mapped Options S23 reflects the state of several AT commands Bit 0 0 Remote DLB disabled AT T5 1 Remote DLB allowed A...

Страница 14: ...o 39 61 20 pulses per second AT P2 3 Make Break ratio 33 67 20 pulses per second AT P3 S29 Hook Flash Timer S29 determines the length of time the modem closes its off hook relay on receipt of the I dial modifier to simulate a switch hook flash Range 0 to 255 Units 10 Milliseconds Default 70 S30 Disconnect on Inactivity Timer S30 sets the period the modem is idle before it disconnects A 0 disables ...

Страница 15: ...y after its buffers are empty Range 0 to 255 Units 1 Second Default 20 S39 Flow Control Bit Mapped Options S39 shows the modem s flow control status AT K Bit 0 2 0 Flow control disabled 3 Hardware flow control RTS CTS 4 In band flow control XON XOFF 5 Transparent in band flow control 6 Both hardware and in band flow control Bit 3 7 Not used S40 MNP Bit Mapped Option S40 shows the status of the mod...

Страница 16: ...fault 138 S48 V 42 Negotiations S48 determines the modem s V 42 negotiation process S48 0 Proceed with LAPM S48 7 Negotiate per V 42 S48 128 Assume LAPM failure Default 7 S86 Fall Failure Code S86 shows why the last NO CARRIER response was issued S86 0 Normal disconnect S86 4 Loss of carrier S86 5 V 42 negotiation failure S86 9 Modem handshake failure S86 12 disconnect initiated by remote modem S8...

Страница 17: ...n 17 CONNECT 38400 38400 BPS connection 18 CONNECT 57600 57600 BPS connection 19 CONNECT 115200 115200 BPS connection 22 CONNECT 75TX 1200RX V 23 originate connection 23 CONNECT 1200TX 75RX V 23 answer connection 33 FAX Fax connection 35 DATA Data connection in Fax mode 40 MRR 300 300 BPS carrier received 44 MRR 1200 75 V 23 reverse channel carrier received 45 MRR 75 1200 V 23 forward channel carr...

Страница 18: ... ER NONE No error correction 77 ER LAPM LAPM error correction 78 MRR 31200 31200 BPS connection 79 MMR 33600 33600 BPS connection 80 ER ALT MNP error correction 81 ER ALT CELLULAR MNP10 error correction 84 CONNECT 33600 33600 BPS connection 91 CONNECT 31200 31200 BPS connection 134 MCR B103 Bell 103 connection 135 MCR B212 Bell 212A connection 136 MCR V21 V 21 connection 137 MCR V22 V 22 connectio...

Страница 19: ...workmanship for one year from date of shipment to original user Data Linc Group will replace or repair at our option any part found to be defective The buyer must return any part claimed defective to Data Linc Group transportation prepaid Return Material Authorization If a part needs to be sent to the factory for repair contact Data Linc Group s corporate office and request a Return Material Autho...

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