Emulex DCP-link User Manual
DCP_link
Multi-Protocol Router
Advanced Configuration Guide
PT1054605-00, Rev A
December 1995
Information contained in this document is believed to be accurate and reliable. However,
Emulex Corporation assumes no responsibility for its use nor for any infringements of patents
or other rights of third parties which may result from its use. Emulex Corporation reserves the
right to change product specifications at any time without notice.
The following trademarks of Emulex Corporation are used in this document:
Emulex, DCP-286i-SBC, DCP-386i, DCP 486e, DCP_link, DCPx86i/e
All other products mentioned are the trademarks of their respective companies.
FCC Statement (USA)
This equipment has been tested and found to comply with the limits for a 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 which case the user will be required to correct the interference at his
own expense. Any changes or modifications not expressly approved by Emulex could void
the user’s authority to operate this equipment. Shielded cables must be used between this
equipment and attached peripheral devices.
DOC Statement (Canada)
Cet equipment ne depasse pas les limites de Classe A d’emission de bruits radioelectriques
pour les appareils numeriques telles que perscrites par let Reglement sur le brouillage
radioelectrique etabli par le ministere des Communications du Canada. L’exploitation faite en
milieu residentiel peut entrainer le brouillage des receptions radio et television, ce qui
obligerait le proprietaire ou l’operateur a prendre les dispositions necessaires pour en eliminer
les causes.
This equipment does not exceed Class A limits for radio noise emissions for digital apparatus
set out in the Radio Interference Regulations of the Canadian Department of
Communications. Operation in a residential area may cause unacceptable interference to radio
and TV reception requiring the owner or operator to take whatever steps are necessary to
correct the interference.
Copyright 1995 Emulex Corporation. All rights reserved worldwide. No part of this
document may be reproduced by any means nor translated to any electronic medium without
the written consent of:
Emulex Corporation
3535 Harbor Boulevard
Costa Mesa, California 92626
Printed in U.S.A.
Table of Contents
Preface
Product Support.................................................................................... i
Audience .................................................................................... i
User Guide Conventions...................................................................... ii
Related Documentation ......................................................................iii
Chapter 1 Introduction
Emulex DCP_link............................................................................. 1-2
Hardware Requirements...........................................................1-3
Software Requirements ............................................................ 1-3
Chapter 2 Hardware Configuration
Factory Default Settings...................................................................2-2
Base I/O Address......................................................................2-3
Host Interrupt Level (IRQ Settings)......................................... 2-5
DCPx86i/e Adapter Configuration...................................................2-6
DCP286i-SBC Configuration........................................................... 2-6
Jumper Settings ........................................................................2-6
Software Compatibility Level............................................ 2-7
Control Register 4 Read Option......................................... 2-8
Window Group Select........................................................ 2-8
Memory Size......................................................................2-8
Setting Data Clock Direction (DTE or DCE)........................... 2-9
DCP386i Configuration..................................................................2-11
Jumper Settings ......................................................................2-11
PC I/O Channel Check..................................................... 2-12
Window Group Select...................................................... 2-12
DCP486e Configuration.................................................................2-14
Jumper Settings ......................................................................2-14
Window Group Select...................................................... 2-14
DCP386i/486e Daughterboard Settings..........................................2-16
8-Port RS-232 Daughterboard................................................2-16
Setting DTE or DCE Operation....................................... 2-16
8-Port RS-422/X.21 Daughterboard.......................................2-18
Setting DTE or DCE Operation....................................... 2-18
Table of Contents ii
Chapter 3 Installation and Cabling
Installing the Emulex Adapter ..........................................................3-3
Cabling Connections.........................................................................3-4
Factory Default Settings....................................................................3-4
DCP286i-SBC Adapter Cables.................................................3-4
DCP386i/DCP486e Daughterboard Cabling ............................3-4
RS-232 Cabling..................................................................3-4
RS-422/X.21 Cabling.........................................................3-5
Optional Cable Drawings..................................................................3-6
Loopback Plug Options ............................................................3-6
RS-232/EIA-530 Loopback Plug .......................................3-6
V.35 Loopback Plug Winchester Male ..............................3-7
X.21 Loopback Plug DB15F..............................................3-8
DCP286i-SBC Adapter Cables.........................................................3-9
RS-232 Cable Assembly ....................................................3-9
RS-422/530 Cable Assembly ...........................................3-10
RS-423 Cable Assembly ..................................................3-11
RS-485 Cable Assembly ..................................................3-12
V.35 Cable Assembly.......................................................3-13
X.21 Cable Assembly.......................................................3-14
RS-232 Standard Cable....................................................3-15
RS-232 Null-Modem Cable (Crossover) ..........................3-16
RS-423/RS-485 Null Modem Cable.................................3-17
V.35 Null Modem Cable..................................................3-18
X.21 Null Modem Cable..................................................3-19
DCP 386i/486e Daughterboard Cabling................................. 3-20
RS-232 Cabling................................................................3-20
RS-232 Standard Cable .........................................3-21
RS-232 Null-Modem Cable (Crossover)...............3-22
RS-232 Three-Wire Port Cable .............................3-22
RS-422 Cabling................................................................3-21
RS-422 Standard Cable .........................................3-24
X.21 Adapter Cable...............................................3-25
RS-422 Null-Modem Cable...................................3-26
Troubleshooting..............................................................................3-27
Table of Contents iii
Chapter 4 Software Installation
Software Installation Procedure........................................................4-2
Installing to Novell NetWare version 3.12 ............................... 4-2
Installing to Novell NetWare version 4.1 ................................. 4-4
Uninstall Procedures......................................................................... 4-6
Uninstall using NetWare version 3.12......................................4-6
Uninstall using NetWare version 4.1........................................4-8
Chapter 5 Software Configuration
INETCFG ................................................................................5-2
INETCFG Menus..................................................................... 5-2
Using Context Sensitive Help .................................................. 5-4
Configuring with INETCFG............................................................. 5-5
Chapter 6 Frame Relay Configuration
Introduction ................................................................................ 6-2
Frame Relay Networks............................................................. 6-2
Frame Relay Parameters........................................................... 6-3
Diagramming Your Frame Relay Network.............................. 6-4
Planning Your Frame Relay Network...................................... 6-4
Configuring the Network Interface...................................................6-6
Configuring the WAN Call Directory............................................ 6-10
Network Protocol and Binding Configuration................................6-13
Configuring Protocol Parameters........................................... 6-13
Binding Network Protocols to a WAN Interface ................... 6-14
Table of Contents iv
Chapter 7 X.25 Configuration
Introduction .................................................................................7-2
Virtual Circuit Service..............................................................7-3
Logical Channel Numbers ........................................................7-4
Diagramming Your X.25 Network ...........................................7-5
Planning Your X.25 Network...................................................7-5
Frame Level Parameters.....................................................7-5
Packet Level Parameters.....................................................7-6
Logical Channel Numbers ........................................................7-8
Emulex X.25 User Facilities.....................................................7-9
Configuring the X.25 Network Interface........................................7-11
Modifying/Creating A Profile.................................................7-13
Local DTE Address.................................................................7-15
X.25 Authentication Options..................................................7-15
Configuring the WAN Call Directory .............................................7-17
Expert Call Configuration.......................................................7-22
Network Protocol and Binding Configuration................................7-24
Configuring Protocol Parameters............................................7-24
Binding Network Protocols.....................................................7-25
Chapter 8 Contacting Emulex
Technical Assistance.........................................................................8-2
Prior to Your Call .....................................................................8-2
Placing the Call.........................................................................8-2
Domestic.............................................................................8-3
European.............................................................................8-3
24 - Hour Support.....................................................................8-4
Product Service 8-4
Bulletin Board System......................................................................8-4
Internet..............................................................................................8-6
Emufax..............................................................................................8-7
Table of Contents v
Appendix A Diagnostic Programs
Diagnostic Platform......................................................................... A-2
Diagnostic Operating Requirements........................................ A-2
README.DOC....................................................................... A-2
Distribution Diskette ............................................................... A-3
Diagnostic Platform Instructions............................................. A-3
Using DCPDIAG3 For The DCP386i............................................. A-7
Diagnostic Operating Requirements........................................ A-7
README.DOC....................................................................... A-7
Distribution Diskette ............................................................... A-7
Running the Diagnostic........................................................... A-8
Thank you for purchasing the DCP_link Multi-Protocol Router. You have
joined the Emulex family of users, who have found that buying our products
guarantees available performance and bandwidth while preserving resources.
We value a strong relationship with our customers and seek to continually
serve your needs in the years to come.
Product Support
Emulex products are supported by a broad range of educational and technical
support services. They are available to help you maximize your system
performance.
Emulex Corporation (HQ) (714) 662-5600
PreSales (714) 513-8053
Technical Support (714) 513-8270
Preface
Audience for Advanced Configuration Guide
The DCP_link Advanced Configuration Guide is included as a supplement to
the DCP_link Quick Start User’s Guide. For most standard installations and
WAN setups, the Quick Start User’s Guide should answer most start up and
configuration questions. The Advanced Configuration Guide is intended to
answer questions concerning WAN connectivity and planning. It also
includes extensive cable pin drawings for use in designing custom cabling.
ii Preface
User Guide Conventions
Sections of text that are marked for emphasis are formatted with the
following key words:
For example:
CAUTION: Provides the user with directions to prevent a
When a command is illustrated in the user’s guide, the variable choices
allowed to be changed will appear in a
lines will begin with a triangular shaped symbol.
An example of a command line is:
> LOAD INETCFG
DCPx86i/e Terminology
Throughout this manual, DCPx86i/e is used to represent the Emulex DCP
product line based on the Intel 80x86 microprocessors. These include the
following:
Note, Important, or Caution.
mistake from occurring.
contrasting typeface. All command
• DCP286i-SBC (Single Board Configurable, ISA bus)
• DCP386
• DCP486
• All of these products are compatible with the Emulex DCP_link
software.
i (ISA bus)
e (EISA bus)
Preface iii
Related Documentation
This section is designed to assist the reader in finding third party reference
manuals for the support of NetWare WAN protocols and general networking
architectures and principles.
NetWare Guides (Included with DCP_link)
Novell NetWare MultiProtocol Router 3.0 Installation and Basic
Configuration Guide
Novell NetWare MultiProtocol Router 3.0 Advanced Configuration and
Reference Guide
Protocol Guides
X.25 Explained: Protocols for Packet Switching Networks
R.J. Deasington
Published by Ellis Horwood, publishers
ISBN 0-13-972175-4
LAN Troubleshooting Handbook
Mark A. Miller
M & T Publishing, Inc.
ISBN 1-55-851-096-7
Internetworking with TCP/IP: Principles, Protocols and Architecture
Douglas Comer
Prentice Hall
ISBN 0-13-470154-2
Emulex Guides
Emulex ECX X.25 Packet Level Reference Manual, PT1054204
Emulex ECX X.25 Frame Level Reference Manual, PT1054205
Emulex ECX X.25 Protocol Programmer’s Guide, PT1054207
Emulex ECX X.25 Library User’s Guide, PT1054602
Introduction
Chapter 1
EMULEX DCP_LINK.............................................................................................1-2
ARDWARE REQUIREMENTS...........................................................................1-3
H
OFTWARE REQUIREMENTS............................................................................1-3
S
1-2 Chapter 1
Emulex DCP_link
Emulex DCP_link is a multi-protocol router including WAN connectivity
software and one of the DCPx86
DCP_link is designed to work in conjunction with the Novell NetWare
Branch Link and Enterprise Router, formerly known as the Novell
MultiProtocol Router (MPR 3.0). This unique adapter and software
combination provides remote connectivity across numerous interfaces,
protocols, network types and hardware platforms.
Through Novell ODI specification compliance, Emulex DCP_link adds the
integrated hardware and software components necessary for remote WAN
connections on NetWare LAN environments. In addition to the WAN
adapter, specialized interface modules and protocol stacks are included to
allow upper-level applications the transparent network link to run over multiprotocol configurations.
A copy of Novell MPR 3.0 (Branch Link or Enterprise version) is included
with DCP_link, and must be installed prior to installation of DCP_link.
NOTE: Please refer to the Novell MPR installation
instructions outlined in Chapter 5 of the Novell
NetWare MultiProtocol Router 3.0 Installation
and Basic Configuration Guide
DCP_link.
i/e family of communications adapters.
included with
Hardware Requirements
In order to successfully install the Emulex DCP_link software, you must be
running NetWare on a Novell approved hardware platform, or you must first
install the Runtime version of Novell NetWare that is shipped with
DCP_link. If you are running on a Novell approved hardware platform, you
will need the following minimum configuration.
• An Intel (or equivalent) 80386 (minimum) based host server with
ISA/EISA slot(s) available for WAN adapter(s).
• At least 16MB of system RAM.
• 80 MB of available hard disk memory.
• (For CD-ROM installation only) A CD-ROM drive compatible with ISO
9660 formatted disks.
• NetWare certified LAN Network Interface Card (NIC) for local routing.
• A 3.5” floppy diskette drive.
You will need the following communications equipment:
Introduction 1-3
• For analog lines, synchronous modems at both ends of the WAN
connection (point-to-point configurations).
• DSU/CSU, synchronous modem, PBX, or T1 multiplexer.
• Cable connectors and adapters, as applicable, for RS-232C, V.35, RS-
422, or X.21 interfaces. Basic connectors for RS-232C and RS-422 are
included with DCP_link.
Software Requirements
To operate properly, your system software should be configured as follows:
• The system should start DOS from the hard disk. NetWare is started from
DOS before it takes over the system hardware completely.
• Novell DOS 7 (included), MS-DOS or PCDOS 3.1 or higher.
1-4 Chapter 1
CAUTION: The system must not load any of the following
Verify that the Novell environment meets the following criteria:
• NetWare O/S version 3.12 or version 4.1 (Runtime version included with
DCP_link).
• Novell MultiProtocol Router (Branch Link or Enterprise version) MPR
3.0, (included with DCP_link).
• You must successfully install MPR software before attempting to install
the Emulex adapter.
What’s Next?
modules:
- extended memory managers, such as HIMEM,
QEMM, or EMM386.
- disk compression utilities, such as Disk Doubler.
- any terminate-and-stay-resident (TSR) programs.
After ensuring that you have the minimum hardware and software
configuration for your server/router, refer to chapter 2 to:
Review Hardware Configuration and determine if you are able to use the
Factory Default Settings.
Hardware
Configuration
Chapter 2
FACTORY DEFAULT SETTINGS ......................................................................2-2
ASE I/O ADDRESS .........................................................................................2-3
B
OST INTERRUPT LEVEL (IRQ SETTING)........................................................2-5
H
DCP286I-SBC ADAPTER CONFIGURATION..................................................2-6
UMPER SETTINGS...........................................................................................2-6
J
Software Compatibility Level.................................................................2-7
Control Register 4 Read Option..............................................................2-8
Window Group Select.............................................................................2-8
Memory Size...........................................................................................2-8
ETTING DATA CLOCK DIRECTION (DTE OR DCE) .......................................2-9
S
DCP386I ADAPTER CONFIGURATION .........................................................2-11
UMPER SETTINGS.........................................................................................2-11
J
PC I/O Channel Check..........................................................................2-12
Window Group Select...........................................................................2-12
DCP486E ADAPTER CONFIGURATION........................................................2-14
UMPER SETTINGS.........................................................................................2-14
J
Window Group Select...........................................................................2-14
DCP386I/486E DAUGHTERBOARD SETTINGS............................................2-16
ORT RS-232 DAUGHTERBOARD...............................................................2-16
8-P
DTE/DCE Selection..............................................................................2-16
ORT RS-422/X.21 DAUGHTERBOARD......................................................2-18
8-P
ETTING DTE OR DCE OPERATION..............................................................2-18
S
2-2 Chapter 2
DCP_link features an 80x86 microprocessor based “intelligent” WAN
adapter to provide powerful co-processing capabilities. The adapter utilizes
1Mb of on-board shared memory to transfer commands and data to the
NetWare server. DMA channels are included to support full-duplex
operation.
This chapter describes the factory default configuration of the
DCP286
applications.
i/386i/486e and tells how to configure the board for WAN
Factory Default Settings
This factory default configuration is correct for all WAN applications:
• DCP286i, DCP386i and DCP486e compatibility level
• 1 Megabyte memory size
• Window Group Select 16K, 32K, 64K, 1MB
• Control Register 4 Read option enabled
IMPORTANT: The base I/O address and the IRQ level
must not be in conflict with any other adapter on
the server. Verify that both the base I/O address
and the interrupt level (IRQ setting) configured on
the adapter match the software configuration. For
more information, refer to
Verify that the following factory default parameters are appropriate for your
server environment. If you can use the factory default configuration, refer to
the DCP_link Quick Start User’s Guide.
Base I/O address 33C hex
Interrupt Level (IRQ) 3
Data clock direction DTE
Chapter 6.
NOTE: The Base I/O address and IRQ settings are the
Other switch or jumper settings unique to an individual adapter type (i.e.,
DCP286i-SBC, DCP386i, or DCP486e) are detailed in a separate section of
this chapter specific to each adapter.
Base I/O Address
The Base I/O address is selected via switch SW1, which may be labeled CR
ADDR (Control Register Address) on some adapters.
The adapter requires four bytes of I/O locations for its control registers.
These control registers are used by the server CPU to coordinate and service
information provided by the adapter. The address of these registers depends
on the setting of switches SW1-1 through SW1-4. The factory default is set
to 33C hex.
Figure 2-1 shows the possible settings for the Control Register 1 address. To
locate the position of SW1 on the adapter, refer to the appropriate diagram in
the following sections for the adapter type you are installing (i.e. 286, 386 or
486).
Hardware Configuration 2-3
same for all adapters. Data Clock Direction, DTE,
is correct for all connections except V.35.
2-4 Chapter 2
SW1 - Base I/O Address Settings
Figure 2-1 SW1
Host Interrupt Level (IRQ Setting)
The jumper block used to set the IRQ is unique to each adapter type.
DCP286i - J13
DCP386i - J6
DCP486e - J11
Refer to the specific adapter section for the location of this jumper.
The available IRQ jumper settings are:
Hardware Configuration 2-5
/ IRQ 2
Figure 2-2 Host Interrupt Level Jumper Plug Settings
Use one jumper to select the appropriate interrupt level. As an example, to
configure the adapter for interrupt level 5, set the jumper as follows:
Figure 2-3 IRQ 5 Jumper Block Placement
NOTE: IRQ 9 is labeled IRQ 2 on the 386 and 486
adapters. The 16 bit bus slot required by the
adapters defines this position as IRQ 9.
2-6 Chapter 2
DCPx86i/e Adapter Configuration
The remainder of Chapter 2 is divided into three sections according to
adapter type (DCP286i-SBC, DCP386i, or DCP486e). Please refer to the
section for the adapter you are installing.
DCP286i-SBC Adapter Configuration
The following diagram of the DCP286i-SBC adapter shows the location of
all option setting switches and jumpers:
Jumper Settings
Figure 2-4 DCP286i-SBC Jumper Block Placement
NOTE: Jumper block J13 sets the Host Interrupt Level and
SW1 sets the base I/O address for the 286 adapter.
Reference the beginning of this chapter for details
on these settings.
Hardware Configuration 2-7
Figure 2-5 shows the factory default options for the standard adapter
configuration. The factory default setting, as shown, calls for jumper blocks
to be in place on each jumper, thus enabling each option:
Figure 2-5 Factory Default Jumper Block Placement
Figure 2-6 - Jumper Block J1 Options
Software Compatibility Level
Jumper J1:1-2 selects the software compatibility level of the DCP286
In the factory default (jumper connected), an application program is able to
detect that the board is a DCP286
available in the original DCP286.
i-SBC.
i and can take advantage of features not
2-8 Chapter 2
Control Register 4 Read Option
Set Jumper J1 to enable (J1-3 to J1-4 connected) host read access to Control
Register 4.
Window Group Select
The DCP286i-SBC contains memory that is shared by the host. The host
software can select the size of the window that is shared using jumper J1:5-6.
The factory default setting (J1-5 to J1-6 connected) allows window sizes of
16K, 32K, 64K or 1MB. By removing this jumper, window sizes of 16K,
64K or 128K are made available.
Memory Size
The memory size on the board, 512 kB or 1MB, is selected by jumper
position J1:7-8. The DCP286
RAM. Remove this jumper to select 512 kB of RAM.
i-SBC is shipped with 1 MB of Dynamic
Hardware Configuration 2-9
Setting Data Clock Direction (DTE or DCE)
J7, J8, J9 and SW-3 set the synchronous data clock direction (DTE or DCE)
for port 1. Jumpers J4, J5, J6 and SW2 set the synchronous data clock
direction (DTE or DCE) for Port 2.
PORT 2 PORT 1
Figure 2-7 Factory Default DTE Settings All Modes Except V.35
NOTE: DTE OPERATION RS422: In the RS422 mode
additional flexibility is provided to terminate
receivers with 100 ohm resistors. If termination
resistors are required in this mode, additional
switches SW3 - 2, 3 and 4 should be CLOSED (SW2
for Port 2).
PORT 2 PORT 1
Figure 2-8 DCE Settings All Modes Except V.35
NOTE: DCE OPERATION RS422 Port 1: In RS422 DCE
mode, if termination resistors are required,
additional switch SW3 - 2 should be CLOSED
(SW2 for Port 2).
2-10 Chapter 2
PORT 2 PORT 1
Figure 2-9 DTE Settings for the V.35 Mode
PORT 2 PORT 1
Figure 2-10 DCE Settings for the V.35 Mode
What’s Next?
After configuring the DCP286i adapter, refer to chapter 3 to:
Install the DCP286i adapter in your computer.
Attach cable.
Hardware Configuration 2-11
DCP386i Adapter Configuration
The following diagram of the DCP386i adapter shows the location of all
option setting switches and jumpers:
Figure 2-11 DCP386i Jumper Block Placement
Jumper Settings
See Figure 2-11 for the location of each jumper block.
NOTE: Jumper block J6 sets the Host Interrupt Level and
SW1 sets the base I/O address for the 386 adapter.
Reference the beginning of this chapter for details
on these settings.
Jumper block J1 and J3 contain the factory default settings for the following
options:
• PC I/O Channel Check
• Window Group Select
Reference the following factory default options for the standard Wan
configuration.
2-12 Chapter 2
Figure 2-12 DCP386i Factory Default Jumper Connections
PC I/O Channel Check
The factory default setting (J1-2 to J1-3 connected) for the DCP386
provides an interrupt line to the PC for parity errors in the shared memory.
This is the I/O Channel Check signal on the PC bus.
A parity error may instead interrupt the local processor at level 0 of the local
82C59. This can be done by placing the jumper in the LCL position (J1-1 to
J1-2 connected). Refer to Figure 2-12 for the factory default jumper settings.
Window Group Select
The DCP386
can select the size of the window that is shared using Jumper J3. The factory
default setting (J3-1 to J3-2 connected) allows window sizes of 16K, 32K,
64K or 1M. Changing this jumper plug position (J3-2 to J3-3 connected),
allows window sizes of 16K, 64K or 128K. Figure 2-13 shows the Window
Group Select jumper settings.
Factory Default
i
i contains memory that is shared by the host. The host software
Figure 2-13 Window Group Select Jumper Plug Settings
What’s Next?
After configuring the DCP386I adapter, refer to Daughterboard Settings
section later in this chapter to:
Configure daughterboard.
Hardware Configuration 2-13
2-14 Chapter 2
DCP486e Adapter Configuration
The following diagram of the DCP486e adapter shows the location of all
option setting switches and jumpers:
J2
Figure 2-14 DCP486e Jumper Block Placement
Jumper Settings
Refer to Figure 2-14 for jumper locations.
NOTE: Jumper block J11 sets the Host Interrupt Level and
Jumper block J8 contains the factory default settings for the following
options:
• Window Group Select
Reference the following factory default options for the standard WAN
configuration.
Window Group Select
The DCP486
can select the size of the window that is shared. Factory default setting (J8-1
to J8-2 connected) allows window sizes of 16K, 32K, 64K or 1 Megabyte.
SW1 sets the base I/O address for the 486 adapter.
Reference the beginning of this chapter for details
on these settings.
e contains memory that is shared by the host. The host software
Hardware Configuration 2-15
Changing this jumper plug position (J8-2 to J8-3 connected), allows window
sizes of 16K, 64K or 128K.
Figure 2-24 shows the Window Group Select jumper settings.
1 2 3
Figure 2-15 Window Group Select Jumper Positions
What’s Next?
After configuring the DCP486E adapter, refer to Daughterboard Settings
section to:
Configure daughterboard.
1 2 3
2-16 Chapter 2
DCP386i/486e Daughterboard Settings
This section provides configuration and installation instructions for the 8port RS-232 full duplex DMA daughterboard (I.D.=BC) and the 8-port RS422/X.21 daughterboard. Both daughterboards are fully compatible with the
DCP386
8-Port RS-232 Daughterboard
The 8-port RS-232 daughterboard adds the following features to the Emulex
DCP386
• All 8 serial ports may be individually configured as either DTE or DCE
• RS232 voltage option.
• Backwards-compatible with the RS-232C 4-port daughterboard
DTE/DCE Selection
Switches SW1 through SW4 are used to select DCE or DTE operation. These
switches are placed along the board edge as shown in Figure 2-14.
i and DCP486e adapters.
i and DCP486e:
mode.
NOTE: Throughout this document, DCE refers to internal
clocking and DTE refers to external clocking.
SW1
J3
SW3
Figure 2-16 Switch Locations on the 8-Port RS-232 Daughterboard
SW4
SW2
J1
J2
Each switch configures two ports, as detailed in the following table:
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