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10

2.0

Installation and connection

2.1

Introduction

The installation of the 1MRS119000 consists mainly of making the physical connections
between the modem and the telephone network, leased line, fixed lines or radio equip-
ment. The power supply connection and the connection for data transfer to and from the
microcontroller (protective relay, I/O unit) are made after the modem board has been
properly inserted. Mounting of the modem board is described in the manual of the equip-
ment it is part of. A separate connector is provided to connect the modem to a PC using a
standard RS232 cable. This connector is only used for setting up the modem and for
service. Setting up the modem can also be done remotely.

Installation procedure:

1. Insert the PC board properly into the rack. As the modem board normally is ordered as

part of other distribution automation equipment, this is done by the factory.

2. Connect the modem to the dial-up lines, leased line or radio equipment. For setting up

the modem, connect a PC temporarily to the modem board.

3. Attach the auxiliary supply and check the operation of the modem with help of the LED

indicators.

4. Verify that the modem settings are in conformance with the network configuration and

match with the settings of the modem used at the host computer. Check for error cor-
rection, baud rate, data compression, etc. See the chapter ‘Command overview’ for a
detailed description on the available modem commands.

5. Verify self-test results. See chapter ‘Self-test’.

6. Check the modems operation in the network.

Содержание 1MRS119000

Страница 1: ...1MRS119000 Plug in Modem Operator s manual ...

Страница 2: ...line 6 1 4 5 Radio interface 7 1 4 6 DTE 7 1 4 7 Power consumption 7 1 4 8 Environmental conditions 7 1 4 9 Mechanical dimension 7 1 5 Block diagram 8 1 6 Power supply and booting 9 1 7 LED indicators 9 1 8 On board controls 9 1 9 Loudspeaker 9 2 0 Installation and connection 10 2 1 Introduction 10 2 2 Connectors 11 2 3 Jumpers 12 2 4 Phone line connections 12 2 5 Radio connections 12 2 6 Leased a...

Страница 3: ... Commands DTE Adaptation 15 3 3 3 AT Command Format 16 3 3 4 Escape Code Sequence 16 3 4 AT Commands 17 3 4 1 AT Commands 26 3 4 2 AT Commands 30 3 4 3 AT Commands 30 3 5 Error detection and data compression commands 31 3 5 1 AT Commands 31 3 6 Special commands 31 3 7 AT Command Result Codes 32 3 8 S Registers 37 3 8 1 Factory defaults 37 4 0 AT command set summary 39 5 0 Service 42 6 0 Trouble Sh...

Страница 4: ...twork The modem is designed according to the following international ITU T recommenda tions for data signalling rates up to 14400 bps ITU T V 21 300 bps ITU T V 22 1200 bps ITU T V 22bis 2400 bps ITU T V 23 1200 75 bps ITU T V 32 4800 9600 bps ITU T V 32bis 14400 bps The line interface fulfils the NET 4 ETS 300 001 second edition April 1994 specifica tion for the agreed countries Attachments to Pu...

Страница 5: ...ic DE Germany DK Denmark EE Estonia EG Egypt ES Spain FI Finland GB Great Britain GR Greece HK Hong Kong HU Hungary ID Indonesia IE Ireland IL Israel ID Indonesia IT Italy MX Mexico MY Malaysia NL Netherlands NO Norway NZ New Zealand PH Philippines PL Poland PT Portugal SA Saudi Arabia SE Sweden SG Singapore SI Slovenia TR Turkey TW Taiwan RU Russia VE Venezuela ZA South Africa 1 3 Features DTE In...

Страница 6: ...Type Function X1 64 pin Euro power supply X2 9 pin D connector RS 232 serial interface Xn 1 RJ12 public telephone network Xn 2 9 pin D connector RS 232 serial interface Xn 3 10 pin leased line radio Loudspeaker on board adjustable sound volume 1 4 3 Telephone line interface Modes Dial up 2 or 4 wire leased or fixed line Xn 1 1 6 ITU T recommendations ITU T V 21 300 bps ITU T V 22 1200 bps ITU T V ...

Страница 7: ...E Interface 2 x RS232 in parallel X2 and Xn 2 Data speed Auto detection between 300 38 400 bit s Data format Auto detection between 7 or 8 data bits odd even or no parity 1 stop bit 1 4 7 Power consumption 5 V typical 165 mA max 250 mA 24 V passive typical 26 mA active typical 45 mA max 60 mA 1 4 8 Environmental conditions Ambient temperature range normal 5 50 C extended 20 60 C Storage temperatur...

Страница 8: ...8 1 5 Block diagram SERIAL INTERFACE INDICATOR CIRCUIT MICRO CONTROLLER MODEM DATA PUMP MCU CRYSTAL EEPROM RESET CIRCUIT LINE INTERFACE MDP CRYSTAL SPEAKER CIRCUIT EPROM SRAM Fig 1 Block diagram ...

Страница 9: ... line off hook Green connected to the line relay control signals RNG Indicates a true ringing signal Green TXD Transmitted data Connected to the modem TxD signal Green RXD Received data Connected to the modem RxD signal Green CD Carrier detect Green RTS Request to send Green IRF Internal Fault detected by the watchdog Normally this LED is off Red 1 8 On board controls The 1MRS119000 is designed on...

Страница 10: ...ng up the modem can also be done remotely Installation procedure 1 Insert the PC board properly into the rack As the modem board normally is ordered as part of other distribution automation equipment this is done by the factory 2 Connect the modem to the dial up lines leased line or radio equipment For setting up the modem connect a PC temporarily to the modem board 3 Attach the auxiliary supply a...

Страница 11: ...d connected to the micro controller IRF Internal Fault detected by the watchdog Led is normally off Xn 1 RJ 12 Telephone line Xn 2 RS 232 connector Xn 3 radio and leased line connector 1 TX_LINEA 2 wire connection and 4 wire transmit 2 TX_LINEB 2 wire connection and 4 wire transmit 3 RX_LINEA 4 wire receive data 4 RX_LINEB 4 wire receive data 5 Not connected 6 RADIO_ONA Radio ON relay normally ope...

Страница 12: ...ype of radio used It should be noted that only certain types of radio transceivers are suitable for the transmission of high speed digital data For attaching the radio transceiver to the modem board refer to the documentation provided with the radio equipment and refer to the pin configuration of connector Xn 3 given in chapter Technical Specifications Cables for connecting the modem board to the ...

Страница 13: ... synchronisation enabled L0 Normal dial up connection D Set modem as originate A Set modem as answering J1 Set line to radio screw connector J0 Set line to telephone connector H1 4 wire line H0 2 wire line E1 Radio subcarrier control enabled E0 Radio subcarrier control disabled F3 Set V23 half duplex 1200 1200 Key in the telephone number instead of nnnn 1MRS119000 1MRS119000 TX RX_LINE TX RX_LINE ...

Страница 14: ...ettings of the secondary substation equipment in which the modem is used The communication between the modem and the DTE is always half duplex 2 10 Mounting The modem board is only delivered as part of ABB Transmit Oy s secondary substation equipment and is therefore mounted by the factory For altering jumper settings and for service reasons the modem board might have to be removed from the rack i...

Страница 15: ...g S6 n commands The command syntax and operation guidelines govern ing each of these command categories are described in the subsequent sections 3 2 3 Basic command syntax Characters within the command line are parsed as commands with associated parameter values The basic commands consist of single ASCII characters or single characters pre ceded by a prefix character followed by a decimal paramete...

Страница 16: ...for the backspace character This editing is not applicable to the AT header of a command A command line may be aborted at any time by entering cntrl x 18h The AT sequence may be followed by any number of commands in sequence except for commands such as Z D or A Commands following commands Z D or A on the same command line will be ignored The maximum number of characters on any command line is 39 i...

Страница 17: ...Result Codes OK For all arguments AT Read Selected S register This command reads and displays the selected S register An S register can be selected by using the ATSn command Result Codes OK For all arguments A Answer The modem will go off hook and attempt to answer an incoming call if correct conditions are met Upon successful completion of answer handshake the modem will go on line in answer mode...

Страница 18: ...l the last valid telephone number The L must be immediately after the D with all the following characters ignored P Select pulse dialling pulse dial the numbers that follow until a T is encoun tered Affects current and subsequent dialling Some countries prevent changing of dialling modes after the first digit is dialled T Select tone dialling tone dial the numbers that follow until a P is encounte...

Страница 19: ...ing the and or may be entered on subsequent command lines The modem will not enter call progress until an additional dial command is issued without the terminator Use H to abort the dial in progress and go back on hook Toggles calling tone enable disable applicable to current dial attempt only Ignored may be used to format the dial string Ignored may be used to format the dial string space Ignored...

Страница 20: ...o 5 and clears S31 bit 1 This command is equivalent to the command string ATN0S37 5 F5 Selects V 22 bis as the only acceptable line modulation for a subsequent connection Sets N0 sets S37 to 6 and clears S31 bit 1 This command is equivalent to the command string ATN0S37 6 F6 Select V 32 bis 4800 or V 32 4800 as the only acceptable line modulation for a subse quent connection Sets N0 sets S37 to 8 ...

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