Black Box IC171C manuale d’uso

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RS422/485 SERIAL INTERF ACE PLUS FEDERAL COMMUNICA TIONS COMMISSION AND INDUSTR Y CANADA RADIO FREQUENCY INTERFERENCE ST A TEMENTS This equipment generates, uses, and can radiate radio frequency energy and if not installed and used properly, that is, in strict accordance with the manufacturer’s instructions, may cause interference to radio commun[...]

RS422/485 SERIAL INTERF ACE PLUS NORMAS OFICIALES MEXICANAS (NOM) ELECTRICAL SAFETY ST A TEMENT INSTRUCCIONES DE SEGURIDAD 1. Todas las instrucciones de seguridad y operación deberán ser leídas antes de que el aparato eléctrico sea operado. 2. Las instrucciones de seguridad y operación deberán ser guardadas para referencia futura. 3. Todas la[...]

RS422/485 SERIAL INTERF ACE PLUS 11. El aparato eléctrico deberá ser connectado a una fuente de poder sólo del tipo descrito en el instructivo de operación, o como se indique en el aparato. 12. Precaución debe ser tomada de tal manera que la tierra fisica y la polarización del equipo no sea eliminada. 13. Los cables de la fuente de poder debe[...]

RS422/485 SERIAL INTERF ACE PLUS Contents Chapter Page 1. Specifications....................................................................................................1 2. Introduction .....................................................................................................2 2.1 Overview ............................................[...]

1 CHAPTER 1: Specifications Number of Ports — Single RS-485/422 Speed — IC050C: 115.2 Kbps; IC171C: 460.8 kbps and higher RS-485 Operation — 2- or 4-wire Connectors — DB25P Maximum Distance — Up to 5000 ft. (1524 m) Communications Chip — IC050C: 16550 UART; IC171C: 16950 UART MTBF — >150,000 hours MTTR — <0.25 hours Materials [...]

2 RS422/485 SERIAL INTERF ACE PLUS 2.1 Overview The RS422/485 Serial Interface Plus is an easy-to-use RS-485 interface for your PC. It incorporates unique hardware circuitry that enables the RS-485 interface to appear to be an RS-232 interface, requiring no additional software drivers. Previous RS-485 interfaces required the software to “turn on?[...]

3 CHAPTER 2: Introduction 2.3 Features Listed below are the special features your Serial Interface Plus offers. • Single-channel RS-485/422 adapter for Windows, OS/2, Windows NT, and DOS communications. • Addressable as COM1: through COM4: or twelve other pre-selected address options. • Automatic RS-485 protocol control allows card to appear [...]

4 RS422/485 SERIAL INTERF ACE PLUS RS-530 and RS-449 RS-530 and RS-449 (EIA-530 and EIA-449) are similar to RS-422 and RS-485 in the fact that they are differential interfaces, but these two standards provide a specified pin-out that defines a full set of modem control signals that can be used for regulating flow control and line status. RS-449 is [...]

5 CHAPTER 2: Introduction This interface is ideal for multi-drop or network environments. The RS-485 tri-state driver (not dual-state) will allow the electrical presence of the driver to be removed from the line. The driver is in a tri-state or high-impedance condition when not active. Only one driver may be active at a time and the other driver(s)[...]

6 RS422/485 SERIAL INTERF ACE PLUS NOTE Be sure to set the address selections and jumper options before installation. The RS422/485 Serial Interface Plus occupies 8 consecutive I/O locations, and looks to the PC as a standard serial port. DIP switch SW1 sets the port address options. Be careful when selecting the port address, since some selections[...]

7 CHAPTER 3: Address Selection Figure 3-1. DIP Switch SW1. Address 3F8 Hex. 1 2 3 4 ON OFF ABCD[...]

8 RS422/485 SERIAL INTERF ACE PLUS NOTE Be sure to set the address selections and jumper options before installation. The RS422/485 Serial Interface Plus contains several jumpers that must be set for proper operation. E1: This header selects the interrupt request for the RS422/485 Serial Interface Plus. If COM1: is selected, this jumper must be on [...]

9 CHAPTER 4: Option Selection Figure 4-2. Header E1 Optional Windows 3.1 Configuration. IRQ 10 selected. (Refer to Chapter 6 for more infor mation.) NOTE IRQ 2 on AT class machines is not available. IRQ 9 is substituted in place of IRQ 2. To select IRQ 9, place the jumper on the IRQ 2 position. E2: “N” indicates the (N)ormal, single-interrupt-p[...]

10 RS422/485 SERIAL INTERF ACE PLUS Figure 4-4. Header E2 in Shared Mode. Header E5 is used to control the RS-485 enable/disable functions for the driver circuit. One of the unique features of the RS422/485 Serial Interface Plus is its ability to be RS-485 compatible without the need for special software or drivers. This is especially useful in Win[...]

11 CHAPTER 4: Option Selection Header E3 is used to control the RS-485 enable/disable functions for the receiver circuit. The RS-485 “Echo” is the result of connecting the board’s receiver inputs to the transmitter outputs. Every time a character is transmitted it is also received by the board. This can be beneficial if your software can hand[...]

12 RS422/485 SERIAL INTERF ACE PLUS DIP shunt E4 selects the pin out for the DB25 connector P3. With the 5-position shunt in the EIA-530 mode, the RS422/485 Serial Interface Plus complies with the EIA-530 pinout with the following signals supported: Signal Name Pin # Mode GND Ground 7 RDB RX+ Receive Positive 16 Input RS-422 RDA RX Receive Negative[...]

13 CHAPTER 4: Option Selection Signal Name Pin # Mode GND Ground 7 TDB TX+ Transmit Positive 24 Output RS-422 TDA TX- Transmit Negative 25 Output RS-422 RDB RX+ Receive Positive 12 Input RS-422 RDA RX- Receive Negative 13 Input RS-422 RS-530/422/485 Line T ermination Typically, each end of the RS-530/422/485 bus must have line-terminating resistors[...]

14 RS422/485 SERIAL INTERF ACE PLUS Figure 4-11. DIP Switch SW2. 1 2 3 4 ON OFF 5 L L P P T[...]

15 CHAPTER 5: Installation IMPOR T ANT You MUST set up the operating system BEFORE you physically install the Card. 5.1 Software Installation If you are installing an ISA adapter in DOS, OS/2 ® , or QNX, please refer to the appropriate directory on one of the Serial Utilities Disks for instructions. 5.1.1 W INDOWS 3.1 X Please refer to the /WINDOW[...]

16 RS422/485 SERIAL INTERF ACE PLUS NOTE Be sure to set the address selections and jumper options before installation. 1. Turn off PC power. Disconnect the power cord. 2. Remove the PC case cover. 3. Locate an available slot and remove the blank metal slot cover. 4. Gently insert the Card into the slot. Make sure that the Card is seated properly. 5[...]

17 CHAPTER 6: Windows 3.1 Configuration To configure the RS422/485 Serial Interface Plus under Windows 3.1, open the “Control Panel,” which is typically found in the “Main” Program Group. Next, open the “Ports” selection under the Control Panel. Select the port you wish to configure. Once you have selected the port, click on the “Sett[...]

18 RS422/485 SERIAL INTERF ACE PLUS The next step is to select the appropriate Baud Rate, Data Bits, Parity, Stop Bits, and Flow Control. If you wish to select an IRQ or address different from the default, click on the “Advanced” button. Advanced Settings for COM 3: Base I/O Port Address Interupt Request Line (IRQ): 03E8 10 OK Cancel Help Setti[...]

19 CHAPTER 6: Windows 3.1 Configuration Select “OK” for all windows after you have made your selection. The following message should appear: If you wish to configure another COM Port setting, select the “Don’t Restart Now” button and repeat this procedure until you have configured all new ports. To make the changes take effect immediately[...]

20 RS422/485 SERIAL INTERF ACE PLUS Computer does not recognize any COM ports, or the system is “dead” or non-responsive. How to identify the problem: Use the SSD.COM Program (found on your utility diskette). Solution: Identify all COM ports installed on you computer and address the RS422/485 Serial Interface Plus at a different address from th[...]

21 When using Windows 3.1, only two ports at any time are functional. How to identify the problem: Verify that all ports have a separate interrupt, or if sharing interrupts, only one device is using the IRQ at a time. Solution: Change the IRQs so that each port has its own unique interrupt (the preferred setting) or close each port before trying to[...]

22 RS422/485 SERIAL INTERF ACE PLUS The RS422/485 Serial Interface Plus is setup to use the A T interrupts, but there’ s no interrupt response. How to identify the problem: Verify that the interrupt jumpers are correctly set. Verify that the card is inserted into a 16-bit or AT slot. Solution: Use the program SLT (found on your utility diskette) [...]

23 7.1 Calling Black Box If you determine that your RS422/485 Serial Interface Plus is malfunctioning, do not attempt to alter or repair the unit. It contains no user-serviceable parts. Contact Black Box Technical Support at 724-746-5500. Before you do, make a record of the history of the problem. We will be able to provide more efficient and accur[...]

24 RS422/485 SERIAL INTERF ACE PLUS SW2 C3 U4 74193 C2 Y1 U3 74193 U2 C1 SLS08-22V10 U1 74LS74 U6 C5 SW1 A T PPL L R1 BCD RP1 1 AUTO RTS 422 E3 RX R2 75173 U8 C7 R4 R3 R18 R6 R5 14 1 NS M E2 D1 C9 U5 C4 E1 2 3 4 5 7 10 11 12 15 P2 P1 SLS07-22V10 C6 74LS245 U7 25 13 R14 R7 R8 R9 R10 R1 1 R12 R13 E1A- 530 S10- 485 R17 R16 TX C8 R15 E4 AUTO RTS 422 E5[...]

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