Application :
Model :
Supply Voltage :Data Rates:Transmit enabled:LED status indicators :RS485 drivers:RS485 Bias:RS485 Termination:Number of RS-485 nodes:Power Reverse protection:RS232 Connector:RS485 Connector:Humidity:Case Meterial :Casing Size :
2-Wire half duplex and 4-Wire full duplex
GPCONV4409 GPCONV4419
DC 7-14 V.110 to 115.2 Kbps Automatic Selection
Automatic turnaround/RTS-controlled (Jumper selectable)Power,Txd/Rxd,Full/Half,RTS/Auto
Up to 1200 m using 26AWG twisted pair wire at 115.2 k Baud into 120 Ohm loads.
680 Ohm pull-up and pull-down (Jumper selectable).120 Ohm (Jumper selectable).
32 NodeYES
DB9 D-SubconnectorMODULAR JACK 6P6C RJ11/Terminals Block Connector
5-95% Non-Condusing.Metal (Gray Color)
W=62,H=80,D=25 mmRS232 Standard Cable , Adaptor 12v 800 mAAccessory :
- 60VOvervoltage Protected :
Technical Specification
The Interfacecom RS232 To RS485 Converter allows RS-232 equipment to utilize RS-485 networks,
oper-ating in either point-to-point or multi-point, 2-or 4-wire. The RS232 To RS485 Converter is
one of the most cost effective RS-485 solutions on the market. Use with your standard PC or Laptop
to control RS-485 devices directly with no special software required. Any standard communications
software for your RS-232 serial ports will work. Plugs directly into standard DB9 male RS-232
port that comes with your PC or convert any number of your RS232 ports on a multiple port card
with DB9 connectors to RS-485. You can also make a RS-232 device a RS-485 device on a RS-485
network.
Overview and Applications
Jumper JP1 Pin 1-2 (RBA) : ON = Enable Bias Resistor 680 ohm in RX(+),A(+) to VCC*
OFF = Disable Bias Resistor
Pin 3-4 (RBY) : ON = Enable Bias Resistor 680 ohm in TX(+) to Vcc*OFF = Disable Bias Resistor
Pin 5-6 (RBY) : ON = Enable Bias Resistor 680 ohm in RX(-),B(+)to Gnd*OFF = Disable Bias Resistor
Pin 7-8 (RBZ) : ON = Enable Bias Resistor 680 ohm in TX(-) to Gnd*OFF = Turnaround Control by RTS Signal
Jumper JP3 Pin 1-2 (TYZ) : ON = Enable Termination Resistor 120 ohm in TX(+) to TX(-)*
OFF = Disable Termination Resistor
Jumper JP4 Pin 1-2 (TAB) : ON = Enable Termination Resistor 120 ohm in RX(+),A(+) to RX(-),B(+)
OFF = Disable Termination Resistor
Pin 9-10 (R/A) : ON = Automatic turnaround Mode*OFF = Turnaround Control by RTS Signal
Pin 11-12(F/H) : ON = 2-Wire Half Duplex Mode Select*OFF = 4-Wire Full duplex Mode Select
Jumper Configuration (*Factory default setting)
INTERFACECOMI n t e r f a c e c om C o . , L t d .RS232 to RS485 Converter
Interfacecom Co.,Ltd. : 8 / 1 8 7 - 1 8 8 M o o 7 K a r n c h a n a p i s a k R d . , B a n g k h a e , B a n g k h a e , B a n g k o k 1 0 1 6 0
Telephone :( + 6 6 2 ) 8 0 3 - 6 8 5 5 - 6 Fax :( + 6 6 2 ) 8 0 3 - 6 8 5 7 Internet : h t t p : / / w w w . i n t e r f a c e c o m . c o . t h
