Related Manuals for Omega Engineering OMG-COMM2-EX
Summary of Contents for Omega Engineering OMG-COMM2-EX
- Page 1 User’ s Guide Shop online at www.omega.com e-mail: info@omega.com OMG-COMM2-EX Dual Port ISA RS-232/422/485 Interface Board...
- Page 2 OMEGAnet Online Service ® www.omega.com Servicing North America: USA: One Omega Drive, P.O. Box 4047 Stamford CT 06907-0047 ISO 9001 Certified TEL: (203) 359-1660 e-mail: info@omega.com Canada: 976 Bergar Laval (Quebec) H7L 5A1, Canada TEL: (514) 856-6928 e-mail: info@omega.ca For immediate technical or application assistance: USA and Canada: Sales Service: 1-800-826-6342 / 1-800-TC-OMEGA Customer Service: 1-800-622-2378 / 1-800-622-BEST...
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Page 3: Table Of Contents
...1 NTRODUCTION ... 1 VERVIEW ’ ... 1 NCLUDED ACTORY EFAULT ETTINGS ...2 ETUP ... 2 DDRESS ELECTION NABLE ISABLE ... 3 NTERFACE ELECTION RS-422/485 ... 3 RS-232... 3 IRQ S ... 3 ELECTION ... 4 NTERRUPT ODES E4... 5 EADERS ...6 NSTALLATION... - Page 4 IRECTIVE TATEMENT Figure 1 - Address Selection Table ...2 Figure 2 - DIP-Switch Illustration...2 Figure 3 - Header E1 and E2, IRQ Selection...3 Figure 4 - Headers E9 and E10, Normal IRQ Mode ...4 Figure 5 - Headers E9 and E10, Shared IRQ Mode ...4 Figure 6 - Headers E9 and E10, Sharing IRQ’s with another adapter ...5...
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Page 5: Introduction
RS-232 for modems, printers and plotters, as well as RS-422/485 for industrial automation and control applications. What’s Included The OMG-COMM2-EX is shipped with the following items. If any of these items are missing or damaged, contact the supplier. OMG-COMM2-EX Serial I/O Adapter... -
Page 6: Card Setup
The following table shows several examples that typically do not cause a conflict. SW1 sets the I/O address for port 1 of the OMG-COMM2-EX and SW2 sets the address for port 2. -
Page 7: Port Enable / Disable
Port Enable / Disable Each port on the OMG-COMM2-EX can be enabled or disabled with switch position 8 on the DIP-switch. The port is enabled with the switch ‘On’ or ‘Closed’ and disabled when ‘Off’ or ‘Open’. If any port is disabled, be sure to disable the interrupt request for that port by removing the IRQ jumper. -
Page 8: Interrupt Modes
IRQs possible. If you are using more than one OMG-COMM2-EX or a compatible adapter in a bus you should only have one port set to ‘M’. The following example shows both ports sharing a single IRQ. -
Page 9: Headers E3 And E4
Card Setup Set the jumper to ‘S’ if you are using more than one OMG-COMM2-EX in a bus or you wish to completely remove the pull-down resistor for hardware compatibility. Setting the adapter in this configuration when it is not accompanied by a pull-down resistor will prevent the ports from triggering an interrupt. -
Page 10: Installation
Installation The OMG-COMM2-EX can be installed in any of the PC expansion slots, but to access the ‘AT’ or (E)ISA IRQs (10 - 15) it must be installed in one of the 16 bit slots. The OMG-COMM2-EX contains several jumper straps for each port which must be set for proper operation prior to installing the adapter into the comp uter. -
Page 11: Technical Description
Technical Description The OMG-COMM2-EX adapter utilizes the 16550 UART chip. This chip features programmable baud rate, data format, interrupt control and has a 16 byte transmit and receive FIFO. Features Full independent operation of ports allowing two ports RS-232, two ports RS-422/485 or one port of each. -
Page 12: Connector Pin Assignments
Technical Note: Please terminate any control signals that are not going to be used. The most common way to do this is connect RTS to CTS and RI. Also, connect DCD to DTR and DSR. Terminating these pins, if not used, will help insure best OMG-COMM2-EX Technical Description Pin # Mode Output... -
Page 13: Specifications
50 mA Mean Time Between Failures (MTBF) Greater than 150,000 hours. (Calculated) Physical Dimensions Board length Board Height including Goldfingers Board Height excluding Goldfingers OMG-COMM2-EX Specifications Storage -20º to 70º C (-4º to 158º F) 10 to 90% R.H. Non-Condensing... -
Page 14: Appendixa - Troubleshooting
First find the ports using the Device Manager, then use 'WinSSD' to verify that the ports are functional. Always use the diagnostic software when troubleshooting a problem. This will help eliminate any software issues and identify any hardware conflicts. OMG-COMM2-EX Appendix A - Troubleshooting Page 10... -
Page 15: Appendixb - How To Get Assistance
RETURN AUTHORIZATION MUST BE OBTAINED FROM OMEGA ENGINEERING BEFORE RETURNED MERCHANDISE WILL BE ACCEPTED. AUTHORIZATION CAN BE OBTAINED BY CALLING OMEGA CUSTOMER SERVICE AND REQUESTING AN AUTHORIZED RETURN (AR) NUMBER. OMG-COMM2-EX Appendix B - How To Get Assistance The latest software Page 11... -
Page 16: Appendixc - Electrical Interface
(ground) to determine binary logic states. The RS-232 and the EIA/TIA-574 specification define two types of interface circuits, Data Terminal Equipment (DTE) and Data Circuit-Terminating Equipment (DCE). The OMG-COMM2-EX is a DTE device. RS-422 The RS-422 specification defines the electrical characteristics of balanced voltage digital interface circuits. -
Page 17: Rs-485
(Tx+ to Rx+ and Tx- to Rx-). Four wire mode allows full duplex data transfers. RS-485 does not define a connector pin-out or a set of modem control signals. RS-485 does not define a physical connector. OMG-COMM2-EX Page 13... -
Page 18: Appendixd - Asynchronous Communications
The data rate and communication parameters for asynchronous communications have to be the same at both the transmitting and receiving ends. The communication parameters are baud rate, parity, number data bits character, OMG-COMM2-EX Odd, Even Remain Idle or Unused next start bit STOP... -
Page 19: Appendixe - Silk -Screen
Appendix E - Silk-Screen Appendix E - Silk-Screen 3.9" 6.9" 4.2" OMG-COMM2-EX Page 15... -
Page 20: Appendixf - Compliance Notices
Appendix F - Compliance Notices Federal Communications Commission Statement FCC - This equipment has been tested and found to comply with the limits for 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. - Page 21 OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a period of 13 months from date of purchase. OMEGA’s WARRANTY adds an additional one (1) month grace period to the normal one (1) year product warranty to cover handling and shipping time. This ensures that OMEGA’s customers receive maximum coverage on each product.
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