SeaLevel ACB-MP.PCI User manual

Part # 5102
Sealevel Systems, Inc
155 Technology Place
P.O. Box 830
Liberty, SC 29657 USA
Phone: [phone]
FAX: [phone]
www.sealevel.com
ACB-MP. PCI
USER MANUAL
TM

Contents
INTRODUCTION .............................................................................................................................1
OVERVIEW ............................................................................................................................................................1
WHAT’SINCLUDED...............................................................................................................................................1
INSTALLATION...............................................................................................................................2
OPERATION SYSTEM INSTALLATION.....................................................................................................................2
SYSTEM INSTALLATION ........................................................................................................................................2
TECHNICAL DESCRIPTION ............................................................................................................3
FEATURES.............................................................................................................................................................3
Internal Baud Rate Generator.......................................................................................................................3
CONTROL AND STATUS REGISTERS DEFINITION....................................................................................................3
INTERFACE SELECTION..........................................................................................................................................4
25 PIN CONNECTOR SIGNAL LAYOUTS (DB-25 MALE).......................................................................................4
RS-232 Signals..............................................................................................................................................4
V.35 Signals...................................................................................................................................................5
RS-530 (RS-422)..........................................................................................................................................5
RS-530A.........................................................................................................................................................6
RS-485 or RS-485T......................................................................................................................................6
SPECIFICATIONS............................................................................................................................7
ENVIRONMENTAL SPECIFICATIONS........................................................................................................................7
POWER CONSUMPTION.........................................................................................................................................7
MEAN TIME BETWEEN FAILURES (MTBF)...........................................................................................................7
PHYSICAL DIMENSIONS.........................................................................................................................................7
APPENDIX A -TROUBLESHOOTING..............................................................................................8
APPENDIX B -HOW TO GET ASSISTANCE....................................................................................9
APPENDIX C -ELECTRICAL INTERFACE.......................................................................................10
RS-232................................................................................................................................................................10
RS-422................................................................................................................................................................10
RS-485................................................................................................................................................................10
RS-530 / 530A...................................................................................................................................................11
V.35.....................................................................................................................................................................11
APPENDIX D -SILK-SCREEN.........................................................................................................12
APPENDIX E -COMPLIANCE NOTICES..........................................................................................13
FEDERAL COMMUNICATIONS COMMISSION STATEMENT......................................................................................13
EMC DIRECTIVE STATEMENT ..............................................................................................................................13
WARRANTY...................................................................................................................................14
© 2000i Sealevel Systems, Incorporated. All rights reserved.

Introduction
Sealevel Systems ACB-MP.PCI Page 1
Introduction
Overview
The ACB-MP.PCI adapter provides the PC with a single channel multi-protocol serial interface utilizing the Zilog
Z85230 (ESCC™), which is suitable for the most popular communication protocols including HDLC/SDLC,
X.25, Bi-Sync, Mono-Sync, and asynchronous.
The ACB-MP.PCI also utilizes the Sipex-505 multi-protocol electrical interface chip that allows the ACB-
MP.PCI to be compliant with EIA/TIA-530/530A, EIA/TIA-232E, EIA/TIA-485, and ITU V.35.
What’s Included
The ACB-MP.PCI is shipped with the following items. If any of these items are missing or damaged, contact the
supplier.
•ACB-MP.PCI Adapter
•Sealevel Software
•Loopback Plug

Installation
Sealevel Systems ACB-MP.PCI Page 2
Installation
Operation System Installation
For Windows users that are using Sealevel’s SeaMAC software please note that there is a different install for this
card than the normal SeaMAC software. When choosing to install the software from the CD scrool down to the
SeaMAC drivers. You should see:*Note: If you are installing Part# 3612 or 5102, click here to install the
Windows 2000 interrupt mode HDLC/SDLC driver. To install the Windows NT interrupt mode Async driver
and for all other ACB products, click the "install SeaMAC" button below. Please be sure to follow these steps
for a successful installation.
System Installation
The ACB-MP.PCI can be installed in any of the PCI expansion slots.
1. Turn off PC 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 ACB-MP.PCI into the slot. Make sure the adapter is seated properly.
5. Replace the screw.
6. Replace the cover.
7. Connect the power cord.
Installation is complete.
The ACB-MP.PCI has a number of cabling options available. These options include:
•CA-103 -This cable provides a high quality shielded cable with the V.35 mechanical specification met on one
end and a DB-25S (female) on the other end. V.35 has a mechanical specification that is impossible to place
on a PC bracket and requires this adapter cable.
•CA-104 -This cable provides a 6’ extension for use with RS-232, and RS-530/530A.
•CA-107 -RS-530 (DB-25P) to RS-449 (DB-37P) cabling adapter. RS-530 is replacing RS-449 in Telecom
applications, but there is still a very large base of installed equipment that uses the RS-449 pin-out. Both
standards use RS-422 to define the electrical specifications and are interchangeable via this adapter cable.

Technical Description
Sealevel Systems ACB-MP.PCI Page 3
Technical Description
The ACB-MP.PCI utilizes the Zilog 85230 Enhanced Serial Communications Controller (ESCC). This chip
features programmable baud rate, data format and interrupt control. Refer to the ESCC Users Manual for details on
programming the 85230 ESCC chip.
Features
•One channel of synchronous or asynchronous communications using the Zilog Z85230 chip
•Programmable electrical interface selection EIA/TIA-232/530/530A/485 and ITU V.35
•Programmable options for Transmit clock as input or output
•Software programmable baud rate
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. However, other oscillator values can be substituted to achieve different baud rates.
Control and Status Registers Definition
The control and status registers occupy 16 consecutive I/O locations. The following tables provide a functional
description of the bit positions. X = do not care
Base Mode D7 D6 D5 D4 D3 D2 D1 D0
+4 RD 0IRQST 00000DSRA
+4 WR XXX0XXXX
+5 RD 485CLK ECHOA SYNCA_RTS SYNCA_CTS AM3 AM2 AM1 AM0
+5 WR 485CLK ECHOA SYNCA_RTS SYNCA_CTS AM3 AM2 AM1 AM0
+6 RD 0000RLA LLA TSETSLA RXCOPTA
+6 WR XXXXRLA LLA TSETSLA RXCOPTA
+14 RD SD7 SD6 SD5 SD4 SD3 SD2 SD1 SD0
+15 RD SD15 SD14 SD13 SD12 SD11 SD10 SD9 SD8
Field Description
IRQST SCC interrupt status: 1 = No interrupt pending on ESCC 0 = Interrupt pending on ESCC.
DSRA DSRA: 1 = DSRA not active 0 = DSRA active
LLA Local Loopback: 1 = LL set 0 = LL not set
RLA Remote Loopback: 1 = RL set 0 = RL not set
TSETSLA TSET clock source: 1= Received TXC as source 0 = TRXCA as source
RXCOPTA RXCOPTA: 1= Selects SCC PCLK for RTXCA 0 = Selects received RXC for
RTXCA
SYNCA_RTS SYNCA _RTS: 1 = SYNCA connected to RTS 0 = SYNCA is high
SYNCA_CTS SYNCA_CTS: 1 = SYNCA connected to CTS 0 = SYNCA is high
485CLK TSET switches with TXD 1 = clk switches 0 = no CLK switching
ECHOA ECHO enable: 1 = echo disabled 0 = echo enabled
AM0-AM3 I/O mode select. See table for valid interface options 0 = High Impedance
SD0-SD15 Optional security feature. Unique value per customer or application. Default value = FFFF
Note: Default values are listed in bold

Technical Description
Sealevel Systems ACB-MP.PCI Page 4
Interface Selection
The ACB-MP.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.
HEX M3 M2 M1 M0 Interface Mode
00000All signals are high impedance
10001* not supported *
20010RS-232
30011* not supported *
40100RS-485T with 120 ohm termination
50101RS-485 without termination
6,7,8,9 0110* not supported *
A1010single ended loop-back
B1011differential loop-back
C1100* not supported *
D1101RS-530
E1110V.35
F1111RS-530A
25 Pin Connector Signal Layouts (DB-25 Male)
RS-232 Signals
Base+5, M3-M0=2, 0010
Signal Name Pin # Mode
GND Ground 7
RD Receive Data 3Input
CTS Clear To Send 5Input
DSR Data Set Ready 6 Input
DCD Data Carrier Detect 8 Input
TM Test Mode 25 Input
TXC Transmit Clock 15 Input
RXC Receive Clock 17 Input
TSET Transmit Signal Element Timing 24 Output
DTR Data Terminal Ready 20 Output
TD Transmit Data 2Output
RTS Request To Send 4Output
LL Local Loop-back 18 Output
RL Remote Loop-back 21 Output
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 you get the best performance from your adapter.

Technical Description
Sealevel Systems ACB-MP.PCI Page 5
V.35 Signals
Base+5, M3-M0=E, 1110
Signal Name DB-25 V.35 Mode
GND Ground 7B
RDB RX+ Receive Positive 16 T Input
RDA RX-Receive Negative 3RInput
TXCB TXC+ Transmit Clock Positive 12 AA Input
TXCA TXC-Transmit Clock Negative 15 YInput
RXCB RXC+ Receive Clock Positive 9XInput
RXCA RXC-Receive Clock Negative 17 VInput
TDB TX+ Transmit Positive 14 SOutput
TDA TX-Transmit Negative 2POutput
TSETB TSET+ Transmit Signal Element Timing + 11 WOutput
TSETA TSET-Transmit Signal Element Timing -24 UOutput
CTS Clear To Send 5DInput *
DSR Data Set Ready 6EInput *
DCD Data Carrier Detect 8FInput *
DTR Data Terminal Ready 20 HOutput *
RTS Request To Send 4COutput *
LL Local Loop-back 18 Output *
RL Remote Loop-back 21 Output.*
•Note:All modem control signals are single ended (un-balanced) with RS-232 signal levels.
RS-530 (RS-422)
Base+5, M3-M0=D, 1101
Signal Name Pin # Mode
GND Ground 7
RDB RX+ Receive Positive 16 Input
RDA RX-Receive Negative 3Input
CTSB CTS+ Clear To Send Positive 13 Input
CTSA CTS-Clear To Send Negative 5Input
DCDB DCD+ Data Carrier Detect Positive 10 Input
DCDA DCD-Data Carrier Detect Negative 8Input
TXCB TXC+ Transmit Clock Positive 12 Input
TXCA TXC-Transmit Clock Negative 15 Input
RXCB RXC+ Receive Clock Positive 9Input
RXCA RXC-Receive Clock Negative 17 Input
TDB TX+ Transmit Positive 14 Output
TDA TX-Transmit Negative 2Output
RTSB RTS+ Request To Send Positive 19 Output
RTSA RTS-Request To Send Negative 4Output
DTRB DTR+ Data Terminal Ready Positive 23 Output
DTRA DTR-Data Terminal Ready Negative 20 Output
TSETB TSET+ Transmit Signal Element Timing Positive 11 Output
TSETA TSET-Transmit Signal Element Timing Negative 24 Output
DSRB DSR+ Data Set Ready Positive 22 Input
DSRA DSR-Data Set Ready Negative 6Input
LL Local Loopback 18 Output
RL Remote Loopback 21 Output

Technical Description
Sealevel Systems ACB-MP.PCI Page 6
RS-530A
Base+5, M3-M0=F, 1111
Signal NamePin # Mode
GND Ground 7
RDB RX+ Receive Positive 16 Input
RDA RX-Receive Negative 3Input
CTSA CTS-Clear To Send Negative 5Input
DCDA DCD-Data Carrier Detect Negative 8Input
TXCB TXC+ Transmit Clock Positive 12 Input
TXCA TXC-Transmit Clock Negative 15 Input
RXCB RXC+ Receive Clock Positive 9Input
RXCA RXC-Receive Clock Negative 17 Input
TDB TX+ Transmit Positive 14 Output
TDA TX-Transmit Negative 2Output
RTSA RTS-Request To Send Negative 4Output
DTRA DTR-Data Terminal Ready Negative 20 Output
TSETB TSET+ Transmit Signal Element Timing Positive 11 Output
TSETA TSET-Transmit Signal Element Timing Negative 24 Output
LL Local Loop-back 18 Output
RL Remote Loop-back 21 Output
RS-485 or RS-485T
Base+5, M3-M0=4, 0100 (With termination)
Base+5, M3-M0=5, 0101 (Without termination)
Signal Name Pin # Mode
GND Ground 7
RDB RX+ Receive Positive 16 Input
RDA RX-Receive Negative 3Input
TXCB TXC+ Transmit Clock Positive 12 Input
TXCA TXC-Transmit Clock Negative 15 Input
RXCB RXC+ Receive Clock Positive 9Input
RXCA RXC-Receive Clock Negative 17 Input
TDB TX+ Transmit Positive 14 Output
TDA TX-Transmit Negative 2Output
TSETB TSET+ Transmit Signal Element Timing Positive 11 Output
TSETA TSET-Transmit Signal Element Timing Negative 24 Output
LL Local Loop-back 18 Output
RL Remote Loop-back 21 Output

Specifications
Sealevel Systems ACB-MP.PCI Page 7
Specifications
Environmental Specifications
Specification Operating Storage
Temperature Range 0 to 50 º C
(32 to 122 º F) -20 to 70 º C (-4 to 158 ºF)
Humidity Range 10 -90% R.H. NonCondensing 10 -90% R.H. NonCondensing
Power Consumption
Supply line +5 VDC
Rating 350 mA
Mean Time Between Failures (MTBF)
Greater than 150,000 hours. (Calculated)
Physical Dimensions
Board length 4.75 inches (12.065 cm.)
Board Height including Goldfingers 3.50 inches (8.890 cm.)
Board Height excluding Goldfingers 3.175 inches (8.065 cm.)

Appendix A -Troubleshooting
Sealevel Systems ACB-MP.PCI Page 8
Appendix A -Troubleshooting
The Developers Toolkit Software is supplied with the Sealevel Systems adapter and will be used in the
troubleshooting procedures. Using this software and following these simple steps can eliminate most common
problems without the need to call Technical Support.
1. Identify all I/O adapters currently installed in your system. This includes the on-board serial ports, controller
cards, sound cards etc. The I/O addresses used by these adapters, as well as the IRQ (if any) should be
identified.
2. Make sure the Sealevel Systems adapter is securely installed in a PCI slot.
3. Use the supplied software and User Manual to verify that the Sealevel Systems adapter is configured correctly.
The supplied software contains a diagnostic program “SSDMP” that will verify if the adapter is configured
properly. This diagnostic program is written with the user in mind and is easy to use.
4. Windows users can use the installed programs in the SeaMAC folder to verify operation.

Appendix B -How To Get Assistance
Sealevel Systems ACB-MP.PCI Page 9
Appendix B -How To Get Assistance
Please refer to Appendix A -Troubleshooting prior to calling Technical Support.
1. Read this manual thoroughly before attempting to install the adapter in your system.
2. 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.
3. Sealevel Systems maintains a Home page on the Internet. Our home page address is
www.sealevel.com. The latest software updates, and newest manuals are available via our FTP site that
can be accessed from our home page.
4. Technical support is available Monday to Friday from 8:00 a.m. to 5:00 p.m. eastern time. Technical
support can be reached at [phone].
RETURN AUTHORIZATION MUST BE OBTAINED FROM SEALEVEL SYSTEMS BEFORE RETURNED
MERCHANDISE WILL BE ACCEPTED. AUTHORIZATION CAN BE OBTAINED BY CALLING SEALEVEL
SYSTEMS AND REQUESTING A RETURN MERCHANDISE AUTHORIZATION (RMA) NUMBER.

Appendix C -Electrical Interface
Sealevel Systems ACB-MP.PCI Page 10
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-232 is
capable of operating at data rates up to 20 Kbps at distances less than 50 ft. The absolute maximum data rate may
vary due to line conditions and cable lengths. RS-232 often operates at 38.4 Kbps over very short distances. The
voltage levels defined by RS-232 range from -12 to +12 volts. RS-232 is a single ended or unbalanced interface,
meaning that a single electrical signal is compared to a common signal (ground) to determine binary logic states. A
voltage of +12 volts (usually +3 to +10 volts) represents a binary 0 (space) and -12 volts (-3to -10 volts) denotes
a binary 1 (mark). The RS-232 and the EIA/TIA-574 specification defines two type of interface circuits, Data
Terminal Equipment (DTE) and Data Circuit-Terminating Equipment (DCE). The Sealevel Systems adapter is a
DTE interface.
RS-422
The RS-422 specification defines the electrical characteristics of balanced voltage digital interface circuits.
RS-422 is a differential interface that defines voltage levels and driver/receiver electrical specifications. On a
differential interface, logic levels are defined by the difference in voltage between a pair of outputs or inputs. In
contrast, a single ended interface, for example RS-232, defines the logic levels as the difference in voltage
between a single signal and a common ground connection. Differential interfaces are typically more immune to
noise or voltage spikes that may occur on the communication lines. Differential interfaces also have greater drive
capabilities that allow for longer cable lengths. RS-422 is rated up to 10 Megabits per second and can have cabling
4000 feet long. RS-422 also defines driver and receiver electrical characteristics that will allow 1 driver and up to
32 receivers on the line at once. RS-422 signal levels range from 0 to +5 volts. RS-422 does not define a physical
connector.
RS-485
RS-485 is backwardly compatible with RS-422; however, it is optimized for party-line 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. RS-485 has electrical characteristics that allow for 32 drivers and 32 receivers to be connected to one
line. This interface is ideal for multi-drop or network environments. RS-485 tri-state driver (not dual-state) will
allow the electrical presence of the driver to be removed from the line. Only one driver may be active at a time and
the other driver(s) must be tri-stated. RS-485 can be cabled in two ways, two wire and four wire mode. Two-wire
mode does not allow for full duplex communication, and requires that data be transferred in only one direction at a
time. For half-duplex operation, the two transmit pins should be connected to the tworeceive pins (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.

Appendix C -Electrical Interface
Sealevel Systems ACB-MP.PCI Page 11
RS-530 / 530A
RS-530 (a.k.a. EIA-530) compatibility means that RS-422 signal levels are met, and the pin-out for the DB-25
connector is specified. The EIA (Electronic Industry Association) created the RS-530 specification to detail the
pin-out, and define a full set of modem control signals that can be used for regulating flow control and line status.
The major difference between RS-530 and RS-530A lies in the modem control interface signals. In RS-530 all
signals are differential, in RS-530A signals DTR, DSR, DCD are single ended. The RS-530 specification defines
two types of interface circuits, Data Terminal Equipment (DTE) and Data Circuit-Terminating Equipment (DCE).
The Sealevel Systems adapter is a DTE interface.
V.35
V.35 is a standard defined by ITU (formerly CCITT) that specifies an electrical, mechanical, and physical interface
that is used extensively by high-speed digital carriers such as AT&T Dataphone Digital Service (DDS). ITU V.35 is
an international standard that is often refereed to as Data Transmission at 48 Kbps Using 60 -108 KHz Group-
Band Circuits. ITU V.35 electrical characteristics are a combination of unbalanced voltage and balanced current
mode signals. Data and clock signals are balanced current mode circuits. These circuits typically have voltage
levels from 0.5 Volts to -0.5 Volts (1 Volt differential). The modem control signals are unbalanced signals and are
compatible with RS-232. The physical connector is a 34-pin connector that supports 24 data, clock and control
signals. The physical connector is defined in the ISO-2593 standard. ITU V.35 specification defines two types of
interface circuits, Data Terminal Equipment (DTE) and Data Circuit-Terminating Equipment (DCE). The Sealevel
Systems adapter is a DTE interface.

Appendix D -Silk-Screen
Sealevel Systems ACB-MP.PCI Page 12
Appendix D -Silk-Screen
3.5"
4.75"
3.175"

Appendix E –Compliance Notices
Sealevel Systems ACB-MP.PCI Page 13
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. 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 such case the user will be required to correct the interference at his own expense.
EMC Directive Statement
Products bearing the CE Label fulfill the requirements of the EMC directive (89/336/EEC) and
of the low-voltage directive (73/23/EEC) issued by the European Commission.
To obey these directives, the following European standards must be met:
•EN55022 Class A-“Limits and methods of measurement of radio interference characteristics of
information technology equipment”
•EN55024 -'Information technology equipment Immunity characteristics Limits and methods of
measurement'
•EN60950 (IEC950) -“Safety of information technology equipment, including electrical business
equipment”
Warning
This is a Class A Product. In a domestic environment this product may cause radio interference in which case the user
may be required to take adequate measures.
Always use cabling provided with this product if possible. If no cable is provided or if an alternate cable is
required, use high quality shielded cabling to maintain compliance with FCC/EMC directives.

Warranty
Sealevel Systems ACB-MP.PCI Page 14
Warranty
Sealevel Systems, Inc. provides a lifetime warranty for this product. Should this product fail to be in good working
order at any time during this period, Sealevel Systems will, at it's option, replace or repair it at no additional charge
except as set forth in the following terms. This warranty does not apply to products damaged by misuse,
modifications, accident or disaster.
Sealevel Systems assumes no liability for any damages, lost profits, lost savings or any other incidental or
consequential damage resulting from the use, misuse of, or inability to use this product. Sealevel Systems will not
be liable for any claim made by any other related party.
RETURN AUTHORIZATION MUST BE OBTAINED FROM SEALEVEL SYSTEMS BEFORE RETURNED
MERCHANDISE WILL BE ACCEPTED. AUTHORIZATION CAN BE OBTAINED BY CALLING SEALEVEL
SYSTEMS AND REQUESTING A RETURN MERCHANDISE AUTHORIZATION (RMA) NUMBER.
Sealevel Systems, Incorporated
155 Technology Place
P.O. Box 830
Liberty, SC 29657 USA
[phone] FAX: [phone]
www.sealevel.com
email: [email protected]
Technical Support is available from 8 a.m. to 5 p.m. Eastern time.
Monday -Friday
Trademarks
Sealevel Systems, Incorporated acknowledges that all trademarks referenced in this manual are the service mark,
trademark, or registered trademark of the respective company.
ACB-MP.PCI is a trademark of Sealevel Systems, Incorporated.