ACB-MB+4.PCI User Manual Part Number 5402 www.sealevel.com PO Box 830 – Liberty, SC 29657 864.843.
Table of Contents INTRODUCTION......................................................................................................................... 1 OTHER SEALEVEL SYNC PRODUCTS ............................................................................................. 1 BEFORE YOU GET STARTED................................................................................................. 2 WHAT’S INCLUDED ...............................................................................................
Introduction The ACB-MP+4.PCI (Item# 5402) is a four-port PCI bus RS-232, RS-422, RS-485 synchronous serial interface. Designed using the popular Zilog Z85230 Enhanced Serial Communication Controller (ESCC), the board is an ideal solution for military, satellite, radar, banking, and other applications that require robust synchronous communications. For maximum flexibility, each of the serial ports can be individually configured for RS-232, RS-422, or RS-485 communications.
Before You Get Started What’s Included The ACB-MB+4.PCI is shipped with the following items. If any of these items is missing or damaged please contact Sealevel for replacement. Item# 5402 – ACB-MB+4.PCI Adapter Item# CA339 – 120-Pin Molex to (4) DB25M Breakout Cable, 36” in Length Item# SSI-CD – Sealevel Software CD with SeaMAC drivers Optional Items Depending upon your application, you are likely to find one or more of the following items useful for interfacing the ACB-MB+4.PCI to real-world signals.
Software Installation Windows 2000/XP Installation Do not install the adapter in the machine until the software has been fully installed. Note: SeaMAC V4 is only supported under Windows 2000/XP 1. Start Windows. 2. Insert the Sealevel Systems CD in your CD drive. 3. If ‘Auto-Start’ is enabled for this drive the software will automatically launch. Otherwise launch the ‘autorun.exe’ file located in the root directory of the CD. 4. Click the ‘Install’ button. 5.
Physical Installation The adapter is universal bus compatible and can be installed in any 3.3V or 5V PCI expansion slot. Do not install the adapter in the machine until the software has been fully installed. 1. Turn off power. Disconnect the power cord. 2. Remove the PC case cover. 3. Locate an available PCI slot and remove the blank metal slot cover. 4. Gently insert the PCI adapter into the slot. Make sure the adapter is seated properly. 5. Replace the screw (required for FCC Part 15 compliance). 6.
Technical Description The ACB-MB+4.PCI utilizes the Zilog 85230 Enhanced Serial Communications Controller (ESCC) and includes a dedicated Z85230 per port. This chip features programmable baud rate, data format and interrupt control. Refer to the ESCC Users Manual, available from Zilog, for details on programming the 85230 ESCC chip. Internal Baud Rate Generator The baud rate of the ESCC is programmed under software control. The standard oscillator supplied with the board is 7.3728 MHz.
120-Pin Connector Pin Out The ACB-MP+4.PCI has a 120-pin high-density connector and includes a cable (Item# CA339) that breaks out to four (4) DB25 male connectors. The pin outs for RS-232, RS-485, RS-530, RS-530A, and V.35 interfaces on the DB25 connectors are listed on the following pages. For customers designing their own cable, the mating 120-pin connector is Molex p/n 55032-1209. The pin out for the 120-pin connector is listed below.
Interface Selection The ACB-MB+4.PCI supports a variety of electrical interfaces. Refer to the Control and Status Register Definitions found in the Technical Description section of this manual for this bit description. There is line termination on RXD, RXC, and TXC in the following modes: RS-530, RS-530A, RS-485T, and V.35.
RS-485 or RS-485T Base+5, M3-M0=4, 0100 (With termination) Base+5, M3-M0=5, 0101 (Without termination) Pin # 2 3 7 9 11 12 14 15 16 17 24 Signal TDA TX– RDA RX– GND RXCB RXC+ TSETB TSET+ TXCB TXC+ TDB TX+ TXCA TXC– RDB RX+ RXCA RXC– TSETA TSET– Name Transmit Negative Receive Negative Ground Receive Clock Positive Transmit Signal Element Timing + Transmit Clock Positive Transmit Positive Transmit Clock Negative Receive Positive Receive Clock Negative Transmit Signal Element Timing – Mode Output Input Inpu
RS-530A Base+5, M3-M0=F, 1111 Pin # 2 3 4 5 6 7 8 9 11 12 13 14 15 16 17 18 19 20 21 24 Signal TDA TX– RDA RX– RTSA RTS– CTSA CTS– DSRA DSR– GND DCDA DCD– RXCB RXC+ TSETB TSET+ TXCB TXC+ CTSB CTS+ TDB TX+ TXCA TXC– RDB RX+ RXCA RXC– LL RTSB RTS+ DTRA DTR– RL TSETA TSET– Name Transmit Negative Receive Negative Request To Send Negative Clear To Send Negative Data Set Ready Negative Ground Data Carrier Detect Negative Receive Clock Positive Transmit Signal Element Timing + Transmit Clock Positive Clear To Se
Electrical Characteristics Features Configurable for RS-232, RS-422, RS-485, RS-530, RS-530A, or V.35 Z85230 Enhanced Serial Communications Controller (ESCC™) supporting synchronous or asynchronous communications Programmable electrical interface selection for EIA/TIA-232/530/530A/485 and ITU V.35 Programmable options for Transmit clock as input or output Software programmable baud rates Data rates to 128K bps Included cable with (4) DB25M connectors X.
Appendix A – Troubleshooting Following these simple steps can eliminate most common problems. 1. Read this manual thoroughly before attempting to install the adapter in your system. 2. Install software first. This places the required installation files in the correct locations. After installing the software, proceed to the physical installation section of this manual. 3. Identify all I/O adapters currently installed in your system.
Appendix B - How To Get Assistance Begin by reading through the Trouble Shooting Guide in Appendix A. If assistance is still needed please see below. When calling for technical assistance, please have your user manual and current adapter settings. If possible, please have the adapter installed in a computer ready to run diagnostics. Sealevel Systems provides an FAQ section on its web site. Please refer to this to answer many common questions. This section can be found at http://www.sealevel.com/faq.
Appendix C – Electrical Interface RS-232 Quite possibly the most widely used communication standard is RS-232. This implementation has been defined and revised several times and is often referred to as RS-232 or EIA/TIA-232. It is defined by the EIA as the Interface between Data Terminal Equipment and Data Circuit- Terminating Equipment Employing Serial Binary Data Interchange. The mechanical implementation of RS-232 is on a 25 pin D sub connector.
RS-485 RS-485 is backwardly compatible with RS-422; however, it is optimized for partyline or multi-drop applications. The output of the RS-422/485 driver is capable of being Active (enabled) or Tri-State (disabled). This capability allows multiple ports to be connected in a multi-drop bus and selectively polled. RS-485 allows cable lengths up to 4000 feet and data rates up to 10 Megabits per second. The signal levels for RS-485 are the same as those defined by RS-422.
Appendix D – Silk Screen – 5402 PCB © Sealevel Systems, Inc. - 15 - ACB-MB+4.
Appendix E - 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.
Warranty Sealevel's commitment to providing the best I/O solutions is reflected in the Lifetime Warranty that is standard on all Sealevel manufactured products. We are able to offer this warranty due to our control of manufacturing quality and the historically high reliability of our products in the field. Sealevel products are designed and manufactured at its Liberty, South Carolina facility, allowing direct control over product development, production, burn-in and testing. Sealevel Systems, Inc.
