The radio modem is fitted with two SMA type connectors for connecting an antenna. The connector labelled Rx is for the receiver, and Tx for the transmitter (up to 25 W). Use the corresponding type of connector with matched impedance as the mate. We recommend an RG158 cable for the serial lead.
The radio modem cannot be connected to the power supply without the antenna connected (or corresponding artificial load). Otherwise this could lead to damage to the radio part of the modem.
The router can be equipped with serial ports RS232 or RS422/485, the ports can be optical isolated. According to the configuration it is possible to use a terminal block or DSUB 9 (Canon) connectors for connecting data cables via the serial interface. See Chapter Dimensional Diagram and Labeling. Data rate on the serial interface can be from 200 bps to 230,400 bps.
Tab. 3.1: Table of data connector RS232 connections
|RS232 signal||Screw terminals||DSUB9F pin|
Tab. 3.2: Table of data connector RS422 connections
|RS422 signal||Screw terminals||DSUB9F pin|
When you are connecting RS485, your “A” has to be connected to TxD+ and RxD+ simultaneously and “B” to TxD- and RxD- simultaneosly.
Note – For data connector RS485 connection see Table of data connector RS422 connections.
Important – For making data cables for connecting the user´s terminal equipment to the serial port we recommend using a shielded cable, particularly in an industrial environment, and connecting the shielding to GND (pin No. 5). When using a multi-core cable all free conductors should be connected to pin No. 5. In the case of a galvanically separate port for RS485 (RS422) only ground one side of the data cable. We recommend using only the necessary minimum length for data cables.
For RS232 RxD is the output from the router (approx. -6V when inactive) and TxD is the input to the router (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.
The SCC ports of the router are DCE type devices. Based on standards the receiver terminal RxD of the connected DTE device is connected to the transmitting terminal of the router’s SCC port which is also labelled RxD. Similarly the red LED indicating transmission from SCC is labelled RxD.
Connector RJ-45 for Ethernet 10BaseT and 100BaseT corresponds to the EIA TIA T568B standard.
Informative LED diodes indicate:
Tx – yellow – output or input active (*Tx – red – output from ETH channel)
Rx – yellow – output or input active (*Rx – green – input to ETH channel
Green LED Tx and yellow LED Rx flash simultaneuosly. The informations marked (*) are valid for hw version produced until 07/2008.
100 – yellow – if lit the 100Base-TX net is indicated otherwise is 10Base-T
LINK – green – indicates correctly connected link
F.D. – green – indicates full duplex operation
The direct cable serves for connecting to the Ethernet network via the hub (repeater) or switch-hub (router).
A crossed cable serves for connecting only two devices – MR400-MC100, MR400-PC, etc.
The ETH module consumption is 30 mA (60 mA until 07/2008).
The following table contains connector connections and colours of conductors. For the crossed cable the order of conductors on one side is the same as for the direct cable.
The module of analog and digital inputs and outputs (ADIO) is designed for :
creating 20 mA current loops
switching loads supplied with DC and AC current
scanning digital signals
Each functional group of terminals is galvanically separated from the rest of the device as shown on the internal layout diagram for the ADIO module on the image below:
Individual terminals of terminal blocks are labelled:
|Connector A OUT|
– analog outputs
|Connector A IN|
– analog inputs
|Connector D OUT|
– digital outputs
|Connector D IN|
– digital inputs
this clamps pair is not used
Tab. 3.5: Table of digital and analog input and output parameters
2 × optically separateddigital output
|– bipolar SSR switch design|
– voltage for supplying load max. 30 V DC, 24 V AC
– switched current typically 300 mAresistance in on state max. 1 Ω
– protection against current overload in on state
– protection against overvoltage in off state
2 × optically separateddigital input
|– passive optical element design|
– input voltage 0–2,3 V will be evaluated as log. 0
– input voltage 2–30 V will be evaluated as log. 1
– max. value of input voltage 30 V
2 × optically separatedanalog output
|– current source 4–20 mA|
– load resistance max. 250 Ω
– settings accuracy better than 0.1 %
2 × optically separatedanalog input
|– sensitivity 0–20 mA (or after sw configuration
– accuracy of measured values better than 0.1 %
– input resistance 60 Ω
– no protection against current overload
– max. value of input current 50 mA
Analog inputs 0 and 1 have – (minus) terminals connected and galvan. separated from router GND.
Analog outputs 0 and 1 have – (minus) terminals connected and galvan. separated from router GND.
Terminals of this connector are labelled in the standard manner. Only DC voltage in the range from 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:
level TTL1 or unconnected clamp – network supply
level TTL0 or grounded clamp – battery supply
Maximal supply cable length is 3 m.
Information LED diodes next to the supply connector:
RF Tx — radio modem transmits RF frequency into antenna
RS SYNC — radio modem received message header which was determined for it
Three following LED (signal strength):
ON ON ON RSS -85dBm and stronger OFF ON ON RSS -85 až -95dBm OFF OFF ON RSS -95 až -115dBm OFF OFF OFF RSS -115dBm and weaker
POWER ON — radio modem is correctly supplied
The service connector RJ-12 serves for short-term connections of the service cable during local adjustment of MORSE router parameters. Upon attaching the connector (connecting to the RS232 link (RxD,TxD, GND)) the router automatically switches to service mode and the module slot 1 disconnects. Slots numbering see section Section 3.8, “View of Radio Modem”.
Tab. 3.6: Table of service connector connections
|1||AF_OUT||output of modulation from RF part of router|
|2||SER_RxD||RS232 RxD output from router|
|3||SER_TxD||RS232 TxD input to router|
|4||MOD_BSB||input modulation to radio part of router|
|6||PTT||keying of TX carrier waves for service purposes|
Be careful, RJ-12 pin numbering is not standardized.
ATTENTION! The service mode is not suitable for normal operation
Fig. 3.11: View of radio modem — description of connectors, model with DSUB (Canon) connectors and with terminals