RS-232C Line Driver User Manual
Contents
1. SW1 DCE DTE Loop Back Select SW2 Full Duplex Simplex Select Housing Plastic Weight 60g Dimensions L x W x H 54 x 74 5 x 18 5 mm Distance Data Rate Table Se M 110 10 6 3 24 AWG two twisted 1200 7 4 4 ee pairs 2400 5 3 1 4800 3 5 2 2 9600 2 1 3 19200 0 8 0 5 Troubleshooting a Data Transmission Check that the IC 150 units are securely plugged into the computers serial Failure ports Check that the cables are properly set up and properly connected Check that SW1 and SW2 are set properly Check that a device configured as DCE is connected to one configured as DTE and vice versa Data Loss or Error Check that pins 4 5 6 8 and 20 carry 9V DC2. noise rejection through the use of differential circuitry The unit is switch selectable for DCE DTE It provides asynchronous transmission and operates full duplex over four wires This compact unit plugs directly into the back of your asynchronous terminal which saves the space that a standalone unit would use and also eliminates the bulk and cost of a separate RS 232 interface which requires a 12V DC source Therefore the IC 150 does not need a separate outlet or power supply Features DCE DTE selectable External Power Not Required Power supplied by the RS 232 interface Compact size Switch Configuration RS 232 DB 25 Female Connecter RJ 11 The IC 150 is configured by setting two slide switches SW1 is used to select the Device Mode SW2 is used to select the Transmission Mode as shown in the table below ree a 1 DCE Full Duplex 2 DTE DCE Tx or DTE Rx 3 Loop Back DCE Rx or DTE Tx Note DCE means Date Communication Equipment DTE means Date Terminal Equipment Device Mode Selection The Device Mode is selected with SW1 as shown in the table below swi Operating Position Mode The IC 150 is set to DCE mode and must be connected to a DTE device 2 DTE The IC 150 is set to DTE mode and must be connected to a DCE device 3 Loop Back The IC 150 is set to Monitor mode and monitors the phone line signals Transmission Mode Selection The Transmission Mode is selecte
3. the computer or terminal must at least also support the RTS line the DTR line or both IC 150 Configuration Table A n a B T R PC1 t 4 IR PC2 COM1 pj 2 _ iT COM1 com2 a ES Te com2 IC 150 Function Table IC 150B il Function 1 Full Duplex A and B may both transmit and receive They only use software handshake Function 2 Simplex Ais the transmitter B is the receiver Function 3 Simplex B is the transmitter A is the receiver Function 4 Loop Back A monitors the phone line data transmission for self test only Note In Simplex Mode only hardware handshaking DTR DSR applies Appendix RS 232 Pin Outs DTE Mode AS Protective Ground 2 TD Transmit Data 3 RD Receive Data 4 RTS Request to Send connected with pin 5 5 CTS Clear to Send connected with pin 4 6 DSR Data Set Ready 7 SG Signal Ground 8 CD Receive Line Signal Detector 20 DTR Data Terminal Ready DCE Mode ns Protective Ground 2 Receive Data 3 TD Transmit Data 4 CTS Clear to Send connected with pin 4 5 RTS Request to Send connected with pin 5 6 DTR Data Terminal Ready 7 SG Signal Ground 8 CD Receive Line Signal Detector 20 DSR Data Set Ready Specifications E Power Supply No external power Power derived from RS 232 interface Data Rate Up to 19 200 bps under 0 5 miles Connectors e 1 x DB 25 female e 1 x4 Post Terminal Block e 1 x RJ 11 Socket Function Switches
4. RS 232C Line Driver User Manual All brand names and trademarks are the registered property of their respective owners Packing Checklist 1 x IC 150 Line Driver 1 x User s Manual If anything is damaged or missing contact your dealer NOTE This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense Overview The non powered IC 150 Line Driver facilitates efficient transmission and reception of serial data without requiring an external power source The unit drives your data at various speeds up to 19 200 bps over distances up to 0 5 miles using 24 gauage wire transmitting at 110 bps over distances up to 6 3 miles Note that the slower the speed the greater the distance and transmission performance may vary depending on operating conditions and wire gauge The IC 150 provides 1 500VAC lighting surge protection and excellent
5. d with a combination of SW1 and SW2 Choices are Full Duplex or Simplex Tx Only or Rx Only as shown in the table below SW2 Operating Mode Position Full Duplex The IC 150 transmits and receives simultaneously With this mode it doesn t matter what SW1 is set to 2 DCE Tx DTE Rx if SW1 is set to DCE SW1 pos 1 the IC 150 only transmits if SW1 is set to DTE SW1 pos 2 the IC 150 only receives 3 DCE Rx DTE Tx if SW1 is set to DCE SW1 pos 1 the IC 150 only receives if SW1 is set to DTE SW1 pos 2 the IC 150 only transmits Switch Setup Summary The above considerations can be summarized in the following table Te Full Duplex Simplex DCE Transmit 1 2 Simplex DCE Receive 1 3 Simplex DTE Transmit 2 3 Simplex DTE Receive 2 2 Loop Back 3 X Note 1 An X in the table means it doesn t matter what the switch is set to 2 If the IC 150 is set as a DCE device it must connect to a DTE device and vice versa Operation You should be aware of the following considerations when operating the IC 150 The digital interface is RS 232C CCITT V 24 When in Full Duplex only software handshake i e Xon Xoff or ETX ACK is applicable via TD and RD When in Simplex only hardware handshake DTR DSR is applicable The unit is powered from host RS 232C interface MC1488 SN75188 or equivalent ICs The interface must provide greater than 9V of power n addition to the TD line
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