SeaLevel Route 56 User manual

Part # 5011
Sealevel Systems, Inc
155 Technology Place
P.O. Box 830
Liberty, SC 29657 USA
Phone: [phone]
FAX: [phone]
www.sealevel.com
Route 56
USER MANUAL
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Contents
INTRODUCTION ........................................................................ 1
OVERVIEW ...........................................................................................1
WHAT’S INCLUDED..............................................................................1
FACTORY DEFAULT SETTINGS..............................................................1
CARD SETUP............................................................................. 2
ADDRESS SELECTION............................................................................2
INTERFACE SELECTION.........................................................................3
IRQ Selection...............................................................................4
INSTALLATION.......................................................................... 5
TECHNICAL DESCRIPTION ....................................................... 6
FEATURES............................................................................................6
IUSC™...............................................................................................7
RAM...................................................................................................7
CONTROL / STATUS REGISTERS DEFINITION.........................................8
Description...................................................................................9
I/O SIGNAL DERIVATION ...................................................................10
25 PIN CONNECTOR SIGNAL LAYOUTS (DB-25 MALE)....................11
RS-232 Signals...........................................................................11
V.35 Signals................................................................................11
V.35 Signals (continued) ...........................................................12
RS-530 (RS-422).......................................................................12
RS-530A......................................................................................12
RS-485 or RS-485T...................................................................13
SPECIFICATIONS..................................................................... 14
ENVIRONMENTAL SPECIFICATIONS.....................................................14
POWER CONSUMPTION......................................................................14
MEAN TIME BETWEEN FAILURES (MTBF)........................................14
PHYSICAL DIMENSIONS......................................................................14
APPENDIX A -TROUBLESHOOTING....................................... 15
APPENDIX B -HOW TO GET ASSISTANCE............................. 16
APPENDIX C -ELECTRICAL INTERFACE................................ 17
RS-232.............................................................................................17
RS-422.............................................................................................17
RS-530 / 530A................................................................................18
V.35..................................................................................................18

APPENDIX D -SILK-SCREEN.................................................. 19
APPENDIX E -COMPLIANCE NOTICES................................... 20
FEDERAL COMMUNICATIONS COMMISSION STATEMENT...................20
EMC DIRECTIVE STATEMENT ...........................................................20
WARRANTY............................................................................ 21
Figures
FIGURE 1 -ADDRESS SELECTION TABLE..............................................................2
FIGURE 2 -DIP-SWITCH ILLUSTRATION.............................................................2
FIGURE 3 –HEADER E1 IRQ SELECTION............................................................4
© 1999f Sealevel Systems, Incorporated. All rights reserved.

Introduction
Sealevel Systems ROUTE 56 Page 1
Introduction
Overview
The ROUTE 56 adapter provides the PC with a single channel high-speed
multi-protocol serial interface suitable for the most popular communication
protocols. This sync/async card provides an ideal solution for high-speed
applications including LAN/WAN connectivity. Utilizing the Z16C32
(IUSC™) on chip DMA controller eliminates bus bandwidth constraints that
are placed on typical PC interface adapters, allowing data rates to reach 10M
bps in burst mode. By utilizing the Z16C32's 32 byte FIFO buffer coupled with
256K of on board memory, higher data rates are achieved without increasing
processor overhead.
What’s Included
The ROUTE 56 is shipped with the following items. If any of these items are
missing or damaged, contact the supplier.
•ROUTE 56 Adapter
•ROUTE 56 Developers Toolkit Software
•ROUTE 56 User manual
Factory Default Settings
The ROUTE 56 factory default settings are as follows:
Base Address IRQ Default Electrical Interface
300 5RS-530/422
To install the ROUTE 56 using factory default settings, refer to Installation on
page 5.
For your reference, record installed ROUTE 56 settings below:
Base Address IRQ Default Electrical Interface

Card Setup
Sealevel Systems ROUTE 56 Page 2
Card Setup
The ROUTE 56 contains several jumper straps for each port, which must be set
for proper operation.
Address Selection
The ROUTE 56 adapter occupies a total of eight consecutive I/O locations. A
DIP-switch is used to set the base address for these locations. Be careful when
selecting the base address as some selections conflict with existing PC ports.
The following table shows several examples that usually do not cause a
conflict.
Address Binary Switch Settings
Hex A9 A8 A0 123456
238-23F 1000111XXX On On On Off Off Off
300-307 1100000XXX Off On On On On On
308-30F 1100000XXX Off On On On On On
310-317 1100010XXX Off On On On Off On
318-31F 1100010XXX Off On On On Off On
320-327 1100100XXX Off On On Off On On
3A0-3A7 1110100XXX Off Off On Off On On
Figure 1-Address Selection Table
The following illustration shows the correlation between the DIP-switch
setting and the address bits used to determine the base address. Assume 300
Hex to 307 Hex is the desired base address. 300 Hex = (1) 1 0000 0X in
Binary.
1 2
3
4
5
6
ON
OFF
A8 A3
Figure 2-DIP-Switch Illustration
Note:Setting the switch “On” or “Closed” corresponds to a “0” in the address,
while leaving it “Off” or “Open” corresponds to a “1”.

Card Setup
Sealevel Systems ROUTE 56 Page 3
Interface Selection
The Route 56 supports a variety of electrical interfaces. These interfaces may
be selected in two ways. The determining bit is found at Base+5, bit position
D4, and is identified as IFSEL (InterFace SELect). Reference the
Control/Status Register Descriptions, found in the Technical Descriptionsection
of this manual for this bit description. When IFSEL = 0, then the values read
from M3-M0 are determined by the DIP-switch SW2. If all the switches on
SW2 are off, then all drivers and receivers are in a high impedance state. Only
one switch should be set to the on position at a time. The following example
illustrates SW-2:
1 2 3 4 5 6
ON
OFF
RS-232 RS-530
RS-530A
RS-485T
RS-485
V.35
When IFSEL = 1, then the values read from M3-M0 are determined by values
written to base+5 register. If this method is utilized, all switches on SW2
should be set in the off position, unless a default value is required. This
prevents the application of excess voltages on power-up to external receivers.
The following table shows the valid options.
HEX M3 M2 M1 M0 INTERFACE MODE
00000all signals are high impedance
10001* not supported *
20010RS-232
30011* not supported *
40100RS-485 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

Card Setup
Sealevel Systems ROUTE 56 Page 4
IRQ Selection
Header E1 is used to select the interrupt request for each the Route 56. In the
example below, IRQ12 is selected. This setting must be made prior to installing
the adapter. Please query your system to determine the best available IRQ to
use.
3 4
5
7
10
11
12
15
9
Figure 3–Header E1 IRQ Selection

Installation
Sealevel Systems ROUTE 56 Page 5
Installation
The ROUTE 56 can be installed in any of the 16-bit ISA expansion slots. The
ROUTE 56 contains several jumper straps for each port, which must be set for
proper operation.
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 ROUTE 56 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 ROUTE 56 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.
•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.
Note: DSR is not available on the card as shipped but can be enabled by placing
a 0-ohm resistor at R30 and removing the 0-ohm resistor at R31. This
will disable the use of Ring Indicator on RS-232, V.35, and RS-530A.
Operation System Installation
Windows NT Users Only
Select Install Software at the beginning of the CD and follow the instructions
for installing the HDLC C32 driver located under Synchronous/Asynchronous
software installation selection.

Technical Description
Sealevel Systems ROUTE 56 Page 6
Technical Description
The Sealevel Systems ROUTE 56 adapter was designed for seamless
integration into any ISA based system. The ROUTE 56 adapter requires a
80286 or higher CPU, one IRQ, a 8 byte block of I/O address and a 16K block
of memory address. The memory range of this adapter is configured to reside
in the lower 1-Megabyte of memory and appears to the system as a bank
switched 16K window. The ROUTE 56 adapter's memory range can be disabled
allowing multiple adapters to share the same block of memory.
Features
•Single channel high speed sync/async wide area network (WAN)
interface
•RS-232, RS-422/449, EIA-530, V.35 and RS-485 serial interface
capability with versatile cabling options
•Multi-protocol capable including: PPP (point-to-point protocol),
Frame Relay, X.25, high-speed Async, Bi-Sync, Mono-Sync, HDLC,
SDLC
•Ideal for T1, Fractional T1, E1, and ISDN applications
•On-board Z16C32 (IUSC™) with built in DMA controller and 32 byte
FIFO buffer
•Up to 10 Mbps burst mode
•256K of on-board RAM
•Link list DMA supported
•16-bit data path
•Off loads communication processing
•OEM Security Feature available

Technical Description
Sealevel Systems ROUTE 56 Page 7
IUSC™
The ROUTE 56 adapter is based on a single Zilog Z16C32 IUSC (Integrated
Universal Serial Controller). Application and driver software access the IUSC
registers through the first 256 bytes of on-board RAM. Register access to the
IUSC can be disabled via I/O registers allowing the first 256 bytes of RAM to
be used for buffer storage. The IUSC has a built-in DMA controller that allows
high-speed data transfers directly to and from the 256K block of on-board
memory. The IUSCs built-in DMA controller supports 4 different modes of
DMA transfer: Single Buffer, Pipelined, Array, and Link List. An on-board
16MHz oscillator clocks the IUSC.
RAM
The ROUTE 56 has 256K of on-board SRAM. The 256K bytes of SRAM
appear to the host processor in the 2nd 512K bytes of the host’s memory
address range, (Segment 80000 to F0000). This 256K of SRAM is in a 16K
bank-switched window. The address of the 16K window and the page is
software selectable. The IUSC always views the 256K of SRAM as linear
memory. The SRAM can be selectively disabled through software. The SRAM
should be addressed in a section that does not conflict with system memory
(i.e. I/O adapters, Video Memory, BIOS/BIOS extensions.)
Low Address Mode
Selected
512K (80000)
1 MB (FFFFF)
16K Address Window
for Bank Switching
(D0000-D4000)