The ACB-MP.PCI adapter provides the PC with a single channel multi-protocol
serial interface utilizing the Zilog Z85230 (ESCC™), which supports HDLC/SDLC
protocol using the Sealevel SeaMAC V4 device driver. SeaMAC V4 also supports
certain configurations of monosync, bisync, and raw modes. The ACB-MP.PCI
adapter is an ideal solution for applications including DDS (digital data service),
military applications, banking communications, and other specialized applications.
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/TIA232E, EIA/TIA-485, and ITU V.35. Optional cables are available to connect RS449, RS-530, RS-530A, V.35 and X.21 interfaces.
The ACB-MP.PCI is shipped with the following items. If any of these items is
missing or damaged please contact Sealevel for replacement.
Item# 5102 – ACB-MP.PCI Adapter
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-MP.PCI to real-world signals. All items can be
purchased from our website (http://www.sealevel.com
CA104 – A 6’ serial extension cable with one DB-25 female connector and one
DB-25 male connector, pinned one-to-one.
CA107 – a 10” shielded cabling adapter with a DB-25F (RS-530) to a DB-37M
(RS-449 DTE). RS-530 is replacing RS-449 in Telecom applications, but there is
still a very large installed base of equipment that still uses the RS-449 pin-out.
Both standards use RS-422 to define the electrical specifications and are
interchangeable via this adapter cable.
CA159 – A 6’ shielded cable with a DB-25 female connector (RS-530 pin out) to
a DB-15 male connector (X.21 pin out) that converts the standard DB-25
implementation of RS-530 or RS-422 to the ITU-T X.21 standard.
CA174 – A 6’ serial extension cable with twisted data pairs for increased data
integrity. Recommended for high-speed RS-530 connections.
CA178 – A 6’ shielded cable with a DB-25 female connector to an ITU-T ISO-
2593 style connector (V.35) that converts the Sealevel DB-25 implementation to
the ITU-T V.35 mechanical standard.
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. Type in or select the part number for the adapter from the listing.
6. The setup files will automatically detect the operating environment and install the
proper components. Follow the information presented on the screens that follow.
7. In Windows XP, a screen may appear with the declaration: “The publisher cannot
be determined due to the problems below: Authenticode signature not found.”
Please click the ‘Yes’ button and proceed with the installation. This declaration
simply means that the operating system is not aware of the driver being loaded.
It will not cause any harm to your system.
8. During setup, the user may specify installation directories and other preferred
configurations. This program also adds entries to the system registry that are
necessary for specifying the operating parameters for each driver. An uninstall
option is also included to remove all registry/INI file entries from the system.
9. The software is now installed and you can proceed with the hardware
installation.
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.
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
+4
+5
+5
+6
+6
+14
+15
Field Description
IRQST
DSRA
LLA
RLA
TSETSLA
RXCOPTA
SCC interrupt status:
DSRA:
Local Loopback: 1 = LL set
Remote Loopback: 1 = RL set
TSET clock source: 1= Received TXC as source
RXCOPTA: 1= Selects SCC PCLK for RTXCA
SYNCA _RTS: 1 = SYNCA connected to RTS
SYNCA_CTS: 1 = SYNCA connected to CTS
TSET switches with TXD: 1 = clk switches
ECHO enable: 1 = echo disabled
I/O mode select. See table for valid interface options.
Optional security feature. Unique value per customer or application.
1 = No interrupt pending on ESCC
1 = DSRA not active
0 = Interrupt pending on ESCC.
0 = DSRA active
0 = LL not set
0 = RL not set
0 = TRXCA as source
0 = Selects received RXC for
RTXCA
0 = SYNCA is high
0 = SYNCA is high
0 = no CLK switching
0 = echo enabled
0 = High Impedance
Default value = FFFF
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.
Single port with DB-25M connector
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
X.21 and RS-449 serial interface capability with versatile cabling options
Specifications
Environmental Specifications
Specification Operating Storage
Temperature
Range
Humidity Range
Power Requirements
+5VDC @ 350mA
Dimensions
L W
4.75” 3.50”
12.07cm 8.90cm
Manufacturing
All Sealevel Systems Printed Circuit boards are built to UL 94V0 rating and are
100% electrically tested. These printed circuit boards are solder mask over bare
copper with either Electroless Nickel Immersion Gold (ENIG) or Hot Air Solder
Leveled (HASL) finish.
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. This includes
your 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.
4. Configure your Sealevel Systems adapter so that there is no conflict with
currently installed adapters. No two adapters can occupy the same I/O
address.
5. Try the Sealevel Systems adapter with a unique IRQ. While the Sealevel
Systems adapter does allow the sharing of IRQs, many other adapters (i.e.,
SCSI adapters and on-board serial ports) do not.
6. Make sure the Sealevel Systems adapter is securely installed.
7. For Windows 2000/XP, the diagnostic tool ‘WinSSD’ is installed the
SeaMAC folder on the Start Menu during the setup process. First find the
ports using the Device Manager, then use ‘WinSSD’ to verify that the ports
are functional.
8. Always use Sealevel Systems diagnostic software when troubleshooting a
problem. This will eliminate any software issues from the equation.
If these steps do not solve your problem, please call Sealevel Systems’ Technical
Support, (864) 843-4343. Our technical support is free and available from 8:00AM5PM Eastern Time, Monday through Friday. For email support contact:
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.asp
Sealevel Systems maintains a Home page on the Internet. Our home page address is
http://www.sealevel.com
available via our FTP site that can be accessed from our home page.
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 (864) 843-4343.
. The latest software updates, and newest manuals are
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.
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 (-3 to -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 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. 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 two receive 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.
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 some of the
modem control interface signals. In RS-530 the signals all of the modem control
signals are differential, in RS-530A some of these signals 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 type of interface circuits, Data Terminal Equipment (DTE) and Data
Circuit-Terminating Equipment (DCE). The Sealevel Systems adapter is a DTE
interface.
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 the
users 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 to prevent or correct the interference.
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.
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. (hereafter "Sealevel") warrants that the Product shall conform
to and perform in accordance with published technical specifications and shall be
free of defects in materials and workmanship for life. In the event of failure,
Sealevel will repair or replace the product at Sealevel's sole discretion. Failures
resulting from misapplication or misuse of the Product, failure to adhere to any
specifications or instructions, or failure resulting from neglect or abuse are not
covered under this warranty.
Warranty service is obtained by delivering the Product to Sealevel and providing
proof of purchase. Return authorization must be obtained from Sealevel Systems
before returned merchandise will be accepted. Authorization is obtained by
calling Sealevel Systems and requesting a Return Merchandise Authorization
(RMA) number. The Customer agrees to insure the Product or assume the risk of
loss or damage in transit, to prepay shipping charges to Sealevel, and to use the
original shipping container or equivalent. Warranty is valid only for original
purchaser and is not transferable.
Trademarks
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.
This warranty applies to Sealevel manufactured Product. Product purchased through
Sealevel but manufactured by a third party will retain the original manufacturer's
warranty.
Technical Support is available Monday - Friday from 8 a.m. to 5 p.m. Eastern time.
Sealevel Systems, Incorporated acknowledges that all trademarks referenced in this
manual are the service mark, trademark, or registered trademark of the respective
company.