For this reason modem MR400 images are often used in other parts of the manual. In order to master all the functions of the radio modem and the MORSE system you should refer to other documents.
The radio modem uses 2-state GMSK modulation providing for a maximum signalling rate of 133 kbit/s. The radio modem is of modular design with one to four standard RS232 ports (an RS422 or RS485 port can be used in place of two of them) available to the user. The configuration can be extended by an Ethernet interface and also by a module with analog and digital inputs/outputs and GPS modul.
The radiomodem is supplied by the DC current 13.8 V. The consumption in the quiet state is from 350 to 500 mA according to module used, the consumption at transmitting is up to 2 A. The modem can be set in the SLEEP mode when the consumtion drops down to 2.5 mA. The return in the active mode can be done by the signal inputting on the serial port or after a preset time.
The radio modem can be equipped with serial ports RS232 or RS422/485, the ports can be optical isolated. According to the configuration of the radio modem it is possible to use a terminal block or DSUB 9 (Canon) connectors for connecting data cables via the serial interface. See Chapter Labelling modems.
3.2.2. Distinguishing Data Modules by Colour For RS232 RxD is the output from the radio modem (approx. -8V when inactive) and TxD is the input to the radio modem (according to the RS 232 standard). Hardware versions of the interface can be distinguished according to the colours of LED diodes next to the connector.
Fig. 3.3: Labelling of serial interface terminals The SCC ports of the radio modem are DCE type devices. Based on standards the receiver terminal RxD of the connected DTE device is connected to the transmitting terminal of the modem's SCC port which is also labelled RxD.
A M-BUS module can be positioned in the first or second slot of optional modules, see section Sec- tion 3.11, “View of Radio Modem”. (For MG100 only in the first slot.) The second slot is recommended because when using slot 1 you first need to disconnect it in the modem´s service mode, see section Section 3.10, “Service Connector”.
“View of Radio Modem”. (For MG100 only in the first slot.) The second slot is recommended because when using slot 1 you first need to disconnect it in the modem´s service mode, see section Section 3.10, “Service Connector”. You can find further detailed information on the module manufacturer’s web...
The T-port module can be positioned in the first or second optional module slot, see section Section 3.11, “View of Radio Modem”. (Or only in the first slot for MG100 modems.) The second slot is recommended because when using slot 1 you need to take into consideration the fact that it needs disconnecting when the modem is in service mode.
10.8 to 15.6 V can be connected. Connecting higher voltage may damage the radio modem. Terminal PI (power indicator) - if the radio modem is fed from the MS2000 power supply information about supply method from source clamp MAIN PWR OFF can be lead: •...
A IN D OUT ETH0 SCC2 SCC1 SCC0 Fig. 3.15: View of radio modem — description of connectors, model with DSUB (Canon) connectors and with terminals Tab. 3.14: Slot options slot 5 ADIO (analog and digital inputs and outputs) slot 4...
For the high-performance P model the modem is mounted on the back wall to ensure sufficient cooling of the modem. In this case 4x M4 screws are used for mounting purposes. There are no centre holes in the P version for attachment to a DIN rail.
Liability for defects does not apply to any product that has been used in a manner which conflicts with the instructions contained in this operator manual, or if the case in which the radio modem is located has been opened, or if the equipment has been tampered with.
The MX160 radio modem has been developed for the frequency range 154 to 164 MHz. Specific fre- quencies are used for each country or region. A radio modem user must keep in mind that this radio device cannot be operated without the permission of the respective local radio spectrum administrator who provides a specific frequency for use and issues the appropriate permission for this.
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