LLM-336D External data modem

          Modems of the MuLogic LLM-336D series are devices for reliable data transmission over analog leased lines, high-quality lines, copper cable or for work in combination with radio equipment. Today, there are two options (subscriber's side): MuLogic LLM-336D.RS-232  and  MuLogic LLM-336D.Eth

     HARDWARE VERSION  LLM-336D.RS232

LED modem indicators
         The front panel of the LLM-336D modem contains five LED indicators that show the status of the most important interface signals and the status of the modem.

         LED indicators on the LLM-336 modem display the status of the modem in real time and the key signals of the terminal equipment interface (DTE). In the event of a communication problem, these LED indicators can help you determine the cause of the problem.

Fоull-duplex modes

ITU-T V.34 – 33.6, 28.8, 26.4, 21.6, 19.2, 14.4, 12, 9.6, 7.2, 4.8 and 2.4 kb/s,  asynchronously / synchronously
ITU-T V.32bis -14.4, 12 и 7.2 kb/s,  asynchronously / synchronously
ITU-T V.32 - 9600 and 4800 b/s,  asynchronously / synchronously
ITU-T V.22bis – 2400 and 1200 b/s,  asynchronously / synchronously
ITU-T V.22 -1200 b/s,  asynchronously / synchronously
ITU-T V.21 – 300 b/s,  synchronously
Bell 212A – 1200 b/s,  asynchronously / synchronously
Bell 103 – 300 b/s,  asynchronously

Half-duplex and multidrop modes

ITU-T V.33 - 14400, 12000 b/s,  asynchronously / synchronously
ITU-T V.29 - 9600, 7200, 4800 b/s,  asynchronously / synchronously
ITU-T V.27bis - 4800, 2400 b/s,  asynchronously / synchronously
ITU-T V.23 - 1200 b/s,  asynchronously
Note: these modules only support half-duplex operation.

Error Correction and Data Compression

ITU-T V.42 - LAPM error correction
ITU-Т V.42bis and V.44 data compression

Supported DTE (serial port) data rates and formats

Asynchronous data rates:
300, 600, 1200, 2400, 4800, 7200, 9600, 12000, 14400, 19200, 28800, 38400, 57600, 115200 b/s
Asynchronous formats: 10 bit: 8-Н-1, 7-Е-1, 7-О-1 or 11 bit: 8-Е-1, 8-О-1
Synchronous data rates:
1200, 2400, 4800, 7200, 9600, 12000, 14400, 16800, 19200, 21600, 26400, 28800, 33600 b/s
 Clock Modes Sync Tx: internal, external or slave mode RxClk.

Supported DTE (serial ports) interface signals

RS232C – V.24/V.28: TxD, RxD, RTS, CTS, DSR, DCD, DTR, RxClk, TxClk, ExtClk, TST.

Line connection

• - 4-wire leased lines, cable or LF port
  - Linear connector type:
                 LLM-336D: 6P4C modular connector
  - Resistance of the line: 600 Ohm
  - High Rx resistance: 5000 Ohm for multipoint operation
  - Тx resistance: 600/5000 Оhm for multipoint operation
  - Transmit level
                            from -10 tо -30 dBm @ 600 Ohm. Default value: -11dBm @ 600 Ohm
                            from -12 tо –32 dBV @ ZR. Default value: -13 dBV @ ZR (ES 203 021)
  - Selectable threshold level of the signal at the reception:
                             -43 dBm ON.
•                            -48 dBm OFF.
•                            -26 dBm ON.
•                            -31 dBm OFF.
•                            -16 dBm ON.
•                            -21 dBm OFF.

LED modem indicators

The LED indicators on the LLM-336 modem display the status of the modem in real time and key interface signals. In the event of a communication problem, these LED indicators can help you determine the cause of the problem.

LED Ethernet indicators 

    SPECIFICATIONS