SeaLevel Route 56 User manual

1
© Sealevel Systems, Inc. 5011 Manual | SL9167 12/2022
Route 56
User Manual | 5011

2
© Sealevel Systems, Inc. 5011 Manual | SL9167 12/2022
Contents
CONTENTS...........................................................................................................................................................2
BEFORE YOU GET STARTED ...............................................................................................................................3
INTRODUCTION ................................................................................................................................................... 4
CARD SETUP ........................................................................................................................................................5
INSTALLATION .................................................................................................................................................... 8
TECHNICAL DESCRIPTION ................................................................................................................................. 9
SPECIFICATIONS ...............................................................................................................................................21
APPENDIX A – TROUBLESHOOTING................................................................................................................22
APPENDIX B – HOW TO GET ASSISTANCE .....................................................................................................23
APPENDIX C – ELECTRICAL INTERFACE ........................................................................................................24
APPENDIX D – SILK SCREEN............................................................................................................................26
APPENDIX E – COMPLIANCE NOTICES...........................................................................................................27
WARRANTY ........................................................................................................................................................28

3
© Sealevel Systems, Inc. 5011 Manual | SL9167 12/2022
Before You Get Started
What’s Included
The Route 56 is shipped with the following items. If any of these items are missing or damaged, please
contact Sealevel for replacement.
•Route 56 Adapter (Item# 5011)
Advisory Conventions
Warning
The highest level of importance used to stress a condition where damage could result to the
product, or the user could suffer serious injury.
Important
The middle level of importance used to highlight information that might not seem obvious or a
situation that could cause the product to fail.
Note
The lowest level of importance used to provide background information, additional tips, or other
non-critical facts that will not affect the use of the product.

4
© Sealevel Systems, Inc. 5011 Manual | SL9167 12/2022
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
Factory Default Settings
The ROUTE 56 factory default settings are as follows:
Base Address IRQ Default Electrical Interface
300 5 RS-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

5
© Sealevel Systems, Inc. 5011 Manual | SL9167 12/2022
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 1 2 3 4 5 6
238-23F 1 000111XXX On On On Off Off Off
300-307 1 100000XXX Off On On On On On
308-30F 1 100000XXX Off On On On On On
310-317 1 100010XXX Off On On On Off On
318-31F 1 100010XXX Off On On On Off On
320-327 1 100100XXX Off On On Off On On
3A0-3A7 1 110100XXX 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.
Figure 2 - DIP-Switch Illustration
Setting the switch “On” or “Closed” corresponds to a “0” in the address, while leaving it “Off” or
“Open” corresponds to a “1”.
1
2
3
4
5
6
ON
OFF
A8
A3

6
© Sealevel Systems, Inc. 5011 Manual | SL9167 12/2022
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 Description section 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:
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
0 0 0 0 0 all signals are high impedance
1 0 0 0 1 * not supported *
2 0 0 1 0 RS-232
3 0 0 1 1 * not supported *
4 0 1 0 0 RS-485 with 120 ohm termination
5 0 1 0 1 RS-485 without termination
6,7,8,9 0 1 1 0 * not supported *
A 1 0 1 0 single ended loop-back
B 1 0 1 1 differential loop-back
C 1 1 0 0 * not supported *
D 1 1 0 1 RS-530
E 1 1 1 0 V.35
F 1 1 1 1 RS-530A
1
2
3
4
5
6
ON
OFF

7
© Sealevel Systems, Inc. 5011 Manual | SL9167 12/2022
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 9 10111215
Figure 3 – Header E1 IRQ Selection

8
© Sealevel Systems, Inc. 5011 Manual | SL9167 12/2022
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.
.
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.

9
© Sealevel Systems, Inc. 5011 Manual | SL9167 12/2022
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.
Sealevel Systems no longer includes a CD with Sealevel software and drivers with the products. Most
all of Sealevel’s software and drivers are available on the website (www.sealevel.com). Sealevel’s
Technical Support department can assist in downloading the correct driver and/or software for the
Route 56. Please contact Technical Support at [email protected] for further information.
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 1Megabyte
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

10
© Sealevel Systems, Inc. 5011 Manual | SL9167 12/2022

11
© Sealevel Systems, Inc. 5011 Manual | SL9167 12/2022
•Off loads communication processing
•OEM Security Feature available
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 bankswitched 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
)
16
K Address Window
for Bank Switching
(D0000-D4000)

12
© Sealevel Systems, Inc. 5011 Manual | SL9167 12/2022

13
© Sealevel Systems, Inc. 5011 Manual | SL9167 12/2022

14
© Sealevel Systems, Inc. 5011 Manual | SL9167 12/2022

15
© Sealevel Systems, Inc. 5011 Manual | SL9167 12/2022
I/O Signal Derivation
The Route 56 input/output signals are directly generated via the Zilog 16C32 IUSC. The following table
defines these signals, their origin pin and signal name following the conventions set by the 16C32 user’s
manual. If using a Sealevel Systems, Inc. supplied driver, this is for informational use only.
Signal
Source
Transmit Data
16C32 TXD Pin
Request To Send
16C32 Port7 Pin
Data Terminal Ready
16C32 Port6 Pin
Transmit Signal Element Timing
16C32 TXC Pin
Receive Data
16C32 RXC Pin
Clear To Send
16C32 CTS Pin
Data Set Ready
16C32 RXREQ Pin
Data Carrier Detect
16C32 DCD Pin
Transmit Clock
16C32 TXCO Pin
Receive Clock
16C32 RXCO Pin
Ring Indicator
16C32 TXREQ Pin

16
© Sealevel Systems, Inc. 5011 Manual | SL9167 12/2022
25 Pin Connector Signal Layouts (DB-25 Male)
RS-232 Signals
Dip-Switch SW2-1 or Base+5, M3-M0=2, 0010
Signal
Name
Pin #
Mode
GND
Ground
7
RD
Receive Data
3
Input
CTS
Clear To Send
5
Input
DSR
Data Set Ready
6
Input
DCD
Data Carrier Detect
8
Input
TM
Test Mode
25
Input
RI
Ring Indicator
22
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
2
Output
RTS
Request To Send
4
Output
LL
Local Loop-back
18
Output
RL
Remote Loop-back
21
Output
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.
V.35 Signals
DIP-Switch SW2-6 or Base+5, M3-M0=E, 1110
Signal
Name
DB-25
V.35
Mode
GND
Ground
7
B
RDB RX+
Receive Positive
16
T
Input
RDA RX-
Receive Negative
3
R
Input
TXCB TXC+
Transmit Clock Positive
12
AA
Input
TXCA TXC-
Transmit Clock Negative
15
Y
Input
RXCB RXC+
Receive Clock Positive
9
X
Input
RXCA RXC-
Receive Clock Negative
17
V
Input

17
© Sealevel Systems, Inc. 5011 Manual | SL9167 12/2022
TDB TX+
Transmit Positive
14
S
Output
TDA TX-
Transmit Negative
2
P
Output
TSETB TSET+
Transmit Signal Element Timing
+
11
W
Output
TSETA TSET-
Transmit Signal Element Timing
-
24
U
Output
CTS
Clear To Send
5
D
Input *
DSR
Data Set Ready
6
E
Input *
V.35 Signals (continued)
DCD
Data Carrier Detect
8
F
Input *
RI
Ring Indicator
22
J
Input *
DTR
Data Terminal Ready
20
H
Output *
RTS
Request To Send
4
C
Output *
LL
Local Loop-back
18
Output *
RL
Remote Loop-back
21
Output.*
All modem control signals are single ended (un-balanced) with RS-232 signal levels.
RS-530 (RS-422)
DIP-Switch SW2-2 or Base+5, M3-M0=D, 1101
Signal
Name
Pin #
Mode
GND
Ground
7
RDB RX+
Receive Positive
16
Input
RDA RX-
Receive Negative
3
Input
CTSB CTS+
Clear To Send Positive
13
Input
CTSA CTS-
Clear To Send Negative
5
Input
DCDB DCD+
Data Carrier Detect Positive
10
Input
DCDA DCD-
Data Carrier Detect Negative
8
Input
TXCB TXC+
Transmit Clock Positive
12
Input
TXCA TXC- Transmit Clock Negative 15 Input
RXCB RXC+
Receive Clock Positive
9
Input
RXCA RXC-
Receive Clock Negative
17
Input
TDB TX+
Transmit Positive
14
Output
TDA TX-
Transmit Negative
2
Output
RTSB RTS+
Request To Send Positive
19
Output

18
© Sealevel Systems, Inc. 5011 Manual | SL9167 12/2022

19
© Sealevel Systems, Inc. 5011 Manual | SL9167 12/2022
RTSA RTS-
Request To Send Negative
4
Output
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
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. In this mode the following signals are supported.
DSRB DSR+
Data Set Ready Positive
22
Input
DSRA DSR-
Data Set Ready Negative
6
Input
RS-530A
DIP-Switch SW2-3 or Base+5, M3-M0=F, 1111
Signal
Name
Pin #
Mode
GND
Ground
7
RDB RX+
Receive Positive
16
Input
RDA RX-
Receive Negative
3
Input
CTSA CTS-
Clear To Send Negative
5
Input
DCDA DCD-
Data Carrier Detect Negative
8
Input
RIA
Ring Indicator Negative
22
Input
TXCB TXC+
Transmit Clock Positive
12
Input
TXCA TXC-
Transmit Clock Negative
15
Input
RXCB RXC+
Receive Clock Positive
9
Input
RXCA RXC-
Receive Clock Negative
17
Input
TDB TX+
Transmit Positive
14
Output
TDA TX-
Transmit Negative
2
Output
RTSA RTS-
Request To Send Negative
4
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
LL
Local Loop-back
18
Output
RL
Remote Loop-back
21
Output

20
© Sealevel Systems, Inc. 5011 Manual | SL9167 12/2022
RS-485 or RS-485T
RS-485T DIP-Switch SW2-4 or Base+5, M3-M0=4, 0100
RS-485T DIP-Switch SW2-5 or Base+5, M3-M0=4, 0101
Signal
Name
Pin #
Mode
GND
Ground
7
RDB RX+
Receive Positive
16
Input
RDA RX-
Receive Negative
3
Input
TXCB TXC+
Transmit Clock Positive
12
Input
TXCA TXC-
Transmit Clock Negative
15
Input
RXCB RXC+
Receive Clock Positive
9
Input
RXCA RXC-
Receive Clock Negative
17
Input
TDB TX+
Transmit Positive
14
Output
TDA TX-
Transmit Negative
2
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