Bay Technical Associates DS4-RPC User manual

OWNER'S MANUAL
________________
DS-RPC
DATA SWITCH/POWER CONTROL
FOR MODELS
DS2-RPC
DS4-RPC
Including the
DS71
DS71-MD2
DS74 &
DS73
Modules
BayTech Manual Publication #U140A124-01
August 1998

ii
Copyright 1998 by Bay Technical Associates, Inc.
BayTech, Telplex, LaserShare, Print Master and TRAN-X are
registered trademarks of Bay Technical Associates, Inc.
IBM, IBM PC, IBM PC/AT, IBM PC/XT are products and registered
trademarks of International Business Machines Corporation.
Hewlett-Packard LaserJet is a product and registered trademark of the
Hewlett-Packard Company.
PROCOMM PLUS is a product and registered trademark of Datastorm
Technologies, Inc.
Windows 95

is a product and registered trademark of Microsoft
Corporation.

DS-RPC OWNER’S MANUAL
ABOUT THIS OWNER’S MANUAL
__________________________________________________________________________________________
iii
ABOUT THIS OWNER’S MANUAL
This document provides information required for installing and operating
your Bay Tech equipment. It should allow the user to connect, power up,
and access an applications menu where peripheral equipment can be
controlled. We recommend reading this manual carefully, while placing
special emphasis on correct cabling and configuration. If you have any
problems with your installation, please contact a BayTech Applications
Engineer at 228-467-8231, call toll free from anywhere in the United
States using 1-800-523-2702 or contact us at our Web Site,
www.baytechdcd.com.
BayTech manufactures many remote site management products, data
switches, data collection multiplexers, remote power controllers, and
peripheral print sharers. If you would like information on any of these
products, please contact BayTech Customer Service at the numbers
previously listed.
Conventions used in this manual include:
CAUTION: This term is used to denote any condition that could
possibly result in physical harm to personnel or damage to
equipment.
IMPORTANT: This term is used to denote conditions that could
result in the loss of communications or to highlight the proper
functioning of equipment.
NOTE: This term is used to denote items of interest to the user.
<cr>: Carriage Return or ENTER

DS-RPC OWNER’S MANUAL
ABOUT THIS OWNER’S MANUAL
__________________________________________________________________________________________
iv
The information in this document is subject to change without notice. The
statements, configurations, technical data, and recommendations in this
document are believed to be accurate and reliable, but are presented
without express or implied warranty. Users must take full responsibility
for their applications of any products specified in this document. The
information in this document is proprietary to Bay Technical Associates,
Inc.
In the interest of improving internal design, operational function, and/or
reliability, Bay Technical Associates, Inc reserves the right to make
changes to the products described in this document without notice.
Bay Technical Associates, Inc does not assume any liability that may
occur due to the use or application of the product(s) or circuit layout(s)
described herein.
This manual replaces BayTech Publication U140A124.
We welcome any comments you may have about our products, and we
hope that you will continue to look to BayTech for your data
communication needs.

DS-RPC OWNER’S MANUAL
TABLE OF CONTENTS
__________________________________________________________________________________________
v
ABOUT THIS OWNER’S MANUAL iii
INTRODUCTION TO THE DS-RPC 1
PROGRAMMABLE FEATURES OF THE DS MODULES 3
DS-RPC QUICK START 6
EIA-232 SERIAL CONNECTION 6
OPERATION 6
DS-RPC CONFIGURATION 8
INSTALLATION 10
UNPACKING 10
PREPARING THE INSTALLATION SITE 11
POWER 11
POWER ON/OFF STATE 12
POWER UP SEQUENCE 12
CIRCUIT BREAKER 12
CABLING 13
RJ-45 CABLES AND ADAPTERS 13
MODEM CONNECTIONS 16
DETAILED OPERATION AND CONFIGURATION 18
CONNECTING TO THE DS-SERIES 18
EIA-232 SERIAL CONNECTION 18
INTERNAL MODEM CONNECTION DS71-MD2 (ONLY) 19
EXTERNAL MODEM CONNECTION 19
10BASE-T NETWORK PORT CONNECTION 20
OPERATION 21
ACCESSING MAIN MENU 21
SELECTING A DEVICE 23
PPP DIAL-UP CONNECTION 25
CONFIGURATION 26
DS71 OR DS71-MD2 CONFIGURATION 26
STATUS 27
SERIAL PORT CONFIGURATION 28
DS71 29

DS-RPC OWNER’S MANUAL
TABLE OF CONTENTS
__________________________________________________________________________________________
vi
DS71-MD2 31
PORT DEVICE NAME 34
PORT SELECT CODE 35
ATTENTION CHARACTER 36
DISCONNECT TIME GUARD 37
CONNECT PORT ID ECHO 38
LOGIN SETUP 39
HEADER 39
PASSWORD 40
MENU 41
AUTO CONNECT PORT 42
DCD LOGON/LOGOFF (DS71 ONLY) 44
LOCAL MODEM SETUP (DS71-MD2 ONLY) 45
RINGS TO ANSWER 46
MODEM TO MODEM XON/XOFF 46
CONNECTIVITY TIMEOUT 47
ESCAPE CHARACTER 48
UNIT ID 49
I/O MODULES RESET 49
UNIT RESET 49
MENU DRIVEN SELECTION 50
ACCESS CHARACTER STRING 50
DS74 CONFIGURATION 51
SERIAL PORT CONFIGURATION 52
PORT DEVICE NAME 52
DS73 CONFIGURATION 53
MODULE IP ADDRESS 54
DIAL-UP ADDRESS 55
SUBNET MASK 56
GATEWAY 57
PRIMARY DNS 58
SECONDARY DNS 58
PRIMARY NBNS 59
SECONDARY NBNS 59
USER NAME 60
PASSWORD 60
MODULE NAME 61
RPC OPERATION 62
ACCESSING MAIN MENU 62
CONTROLLING RECEPTACLES 63
RPC CONFIGURATION 64
CHANGE PASSWORD 65
DISABLING A PASSWORD 66
CHANGE OUTLET NAME 66
ENABLE/DISABLE CONFIRMATION 67
ENABLE/DISABLE STATUS MENU 67

DS-RPC OWNER’S MANUAL
TABLE OF CONTENTS
__________________________________________________________________________________________
vii
TECHNICAL SUPPORT 69
EQUIPMENT SETUP 70
REPACKAGING, SHIPPING AND RETURNING TO THE FACTORY
71
FCC RADIO FREQUENCY INTERFACE STATEMENT 72
APPENDIX A – SPECIFICATIONS 74
APPENDIX B – MODEM COMMANDS 76
APPENDIX C – WINDOWS 95 TUTORIAL 78
APPENDIX D – DRAWINGS 81
APPENDIX E – EPROM UPGRADE 89
APPENDIX F – ASCII CHARACTER DEFINITION 91
INDEX 92

DS-RPC OWNER’S MANUAL
INTRODUCTION TO THE DS-RPC
__________________________________________________________________________________________
1
INTRODUCTION TO THE DS-RPC
BayTech’s DS-RPC provides a single dialup or EIA-232 gateway to
multiple EIA-232 devices. Used for accessing remote equipment or simply
switching between multiple ports, the DS-RPC provides a full duplex
connection between the host and up to 12 peripherals. In a typical
application, the host module connects to a local or remote computer, and
the peripheral port modules connect to devices such as routers, hubs,
servers, and Data Service Units (DSU’s). The DS-RPC is also compatible
with other BayTech products including the Remote Power Control (RPC)
unit.

DS-RPC OWNER’S MANUAL
INTRODUCTION TO THE DS-RPC
__________________________________________________________________________________________
2
In a typical application, the host port of the data switch is connected to a
local or remote computer and the peripheral ports are connected to devices
such as routers, hubs, bar code readers, terminals, etc. Port selection is
accomplished two different ways.
(1) Use a simple menu-driven selection sequence or
(2) send an ASCII character string to select a port. The DS-RPC
also has four individual relay controlled, 115 VAC power
receptacles. Each receptacle is controlled by sending simple
commands from a local or remote location.
The DS2-RPC base unit consists of two slots for a host communications
module and a peripheral communications module. The DS4-RPC base unit
consists of four slots for a host communications module and up to three
peripheral communications modules. Both control the four power outlets,
LEDs, non-volatile storage, and data flow between connected modules. The
data bus is an internal matrix of high speed serial channels that allows
independent and simultaneous transmission of data between modules.
The DS71 host communications module is a system data controller that
directs operations between the base unit, system modules, and externally
connected devices. The DS71 provides primary user access for systems
communications. The DS71-MD2 has a high speed EIA-232 port and an
internal modem for remote or local data acquisition and control. The DS74
is a 4-port high speed EIA-232 peripheral communications module that
provides bi-directional communications between the host device and a
selected peripheral device connected to a DS74 port. The DS74 has
selectable serial configuration for baud rate, word size, stop bits, parity,
DTR, RTS inactive state and XON/XOFF handshaking for each port.

DS-RPC OWNER’S MANUAL
INTRODUCTION TO THE DS-RPC
__________________________________________________________________________________________
3
PROGRAMMABLE FEATURES OF THE DS MODULES
Highlighted features indicate items most often programmed
FEATURE DESCRIPTION ACTION PAGE
NO.
DS71 or DS71-MD2 HOST MODULE
Serial Port
Configuration Sets serial port speed of the DS71 and
DS71-MD2 Default = 9600, 8, 1, N,
Xon/Xoff Disabled
Enter baud rate, data bits,
stop bits, parity, and
Xon/Xoff
28
Port Device
Name Uniquely identifies the port (or device
connected to the port). Default = Host
EIA-232 and Host MODEM (DS71-
MD2 only)
Enter the device name 34
Port Select Code ASCII character string used to select a
port or module. Default = $BT Enter Port Select Code 35
Attention
Character A character sent in sequence five times
to invoke the main menu.
Default = ;
Enter Attention Character 36
Disconnect
Time Guard Provides reliable binary data
transmission. Default = Disabled Enable/Disable Disconnect
Time Guard 37
Port ID Echo Echoes the module number and port
number when you connect to the port.
Default = Disabled
Enable/Disable Connect Port
ID Echo 38
Header Unit information that appears upon login
Default = DS71 or DS71-MD2 Enable/Disable Header 39
Password Password protection for dial-up and
EIA-232 connections.
Default = Disabled
Enable/ Disable, and Program
Password 40
Menu Provides a menu interface for device
selection, and configuration.
Default = Enabled
Enable/Disable Menu 41
Auto Connect
Port Allows automatic connection to a
specified port upon dial-up or
EIA-232 connection.
Default = Disabled
Enable,/Disable, and Program
Auto Connect Port. 42
DCD
Logon/Logoff
(DS71 only)
External modem returns to logoff state
when DCD line goes low.
Default = Enabled
Enable/Disable menu
selection and make hardware
jumper change
44
Table 1

DS-RPC OWNER’S MANUAL
INTRODUCTION TO THE DS-RPC
__________________________________________________________________________________________
4
PROGRAMMABLE FEATURES OF THE DS MODULES
(con’t)
FEATURE DESCRIPTION ACTION PAGE
NO.
DS71-MD2 HOST MODULE
Rings to
Answer(*) The number of times the modem rings
before it automatically answers.
Default = 2 rings
Enter number of rings to
auto answer 45
Modem to
Modem
Xon/Xoff(*)
ASCII character used to stop or start
transmission of data.
Default = Disabled
Enable/ Disable Modem to
Modem 46
Connectivity
Timeout(*) Configures the amount of connectivity
(5 to 255 minutes) before modem
disconnects. Default = 60 minutes
Enter timeout in minutes.
Enter 0 to disable 47
Escape
Character(*) Allows ASCII characters to be
interpreted as commands instead of data.
Default = 43 (+)
Enter the character you wish
to use as an escape 48
Unit ID Unique ID for DS-Series unit.
Default = DS71 or DS71-MD2 Enter unit ID 48
DS74 PERIPHERAL I/O MODULE
Serial Port
Configuration Sets serial port speed for each I/O port
on the DS74. Default = 9600, 8, 1, N,
Xon/Xoff Disabled, RTS/DTR Low
Enter baud rate, data bits,
stop bits, parity, Xon/Xoff,
and DTR/RTS line driver
52
Port Device
Name Unique ID for each I/O port as displayed
on the main menu. Default = Device A,
Device B, Device C, Device D, etc.
Enter port device name 52
Table 1 (con’t)

DS-RPC OWNER’S MANUAL
INTRODUCTION TO THE DS-RPC
__________________________________________________________________________________________
5
PROGRAMMABLE FEATURES OF THE DS MODULES
(con’t)
FEATURE DESCRIPTION ACTION PAGE
NO.
DS73TPNETWORK MODULE
Module IP
Address IP Address for the DS73TP to access the
network. Default = 0.0.0.0 Enter the IP Address in
dotted decimal format 0.0.0.0 54
Dial-in IP
Address IP Address for the network to access the
DS73TP. Default = 0.0.0.0 Enter the IP Address in dotted decimal format 0.0.0.0 55
Subnet Mask Consists of four bytes, each byte ranging
from 0 to 255. Default = 0.0.0.0 Enter the Subnet Mask in
dotted decimal format 0.0.0.0 56
Gateway Consists of four bytes, each byte ranging
from 0 to 255. Default = 0.0.0.0 Enter the Gateway in dotted
decimal format. 0.0.0.0 57
Primary DNS Primary Domain Name System address.
Default = 0.0.0.0 Enter Primary DNS Address 57
Secondary DNS Secondary Domain Name System
address. Default = 0.0.0.0 Enter Secondary DNS Address 58
Primary NBNS Primary Net BIOS Name Server.
Default = 0.0.0.0 Enter Primary NBNS
Address 59
Secondary
NBNS Secondary Net BIOS Name Server.
Default = 0.0.0.0 Enter Secondary NBNS
Address 59
User Name Unique User ID. Default = user1 Enter User Name up to 8
characters 60
Password Password for the Dial-Up PPP.
Default = BTA Enter Password up to 8
characters 60
Module Name Unique ID for the module.
Default = DS73TP Enter Module Name up to 8
characters 61

DS-RPC OWNER’S MANUAL
QUICK START
__________________________________________________________________________________________
6
DS-RPC QUICK START
This section, “Quick Start,” describes the basic steps required to set up and
configure your DS-RPC. If you need to acquaint yourself further with
setup, configuration, and operations, see “Detailed Operations and
Configuration” beginning on page 18.
EIA-232 SERIAL CONNECTION
Using the 9FRJ45PC-4 adapter and the RJ08X007 (8 pin crossed) cable,
connect the Serial port of your computer to the RJ-45 port labeled
“EIA-232” on the DS71 or DS71-MD2 module.
Load serial port communications software. Set serial communications
parameters to 9600 bps, 8 data bits, 1 stop bit, and no parity.
OPERATION
Accessing Main Menu Power on the DS-RPC. The following
header and main menu appears if using the
DS71:
Data Switch Series - F.2.01
Bay Technical Associates
Unit ID: DS71
Port Select Code:$BT
Attention Character: ;
Device A (2,1)...............1
Device B (2,2)...............2
Device C (2,3)...............3
Device D (2,4)...............4
DS-RPC (3,1)…………5
Configure.................................C
I/O Modules Reset..................RM
Unit Reset................................RU
Exit.........................…...............X, ENTER
Logout.......................................T
Enter Request:
NOTE: The DS71 and DS71-MD2 have some menus that are
different. Where this situation occurs it will be addressed.

DS-RPC OWNER’S MANUAL
QUICK START
__________________________________________________________________________________________
7
Or this menu if the DS71-MD2 is used:
Data Switch Series - F.0.13
Bay Technical Associates
Unit ID:DS71-MD2
Port Select Code: $BT
Attention Character: ;
Use the “Attention Character” to display the
remainder of the menu.
Device A (2,1)...............1
Device B (2,2)...............2
Device C (2,3)...............3
Device D (2,4)...............4
DS-RPC (3,1)…………5
Configure.................................C
I/O Modules Reset..................RM
Unit Reset................................RU
Exit.........................…...............X
Logout.......................................T
Enter Request:
NOTE: These menus depict a typical DS2-RPC setup. The DS4-
RPC may have more menu items, depending on the setup.
If this is not an initial set-up and Password
has already been enabled, you are prompted
to login. After logging in successfully,
access the main menu by sending the
attention character five times (;;;;;).
Selecting a Device From the main menu, select the number of
the device you wish to access, followed by
<cr>. To return to the main menu, send the
attention character five times (;;;;;).

DS-RPC OWNER’S MANUAL
QUICK START
__________________________________________________________________________________________
8
Accessing RPC Menu Select the RPC module. The following
status menu appears:
DS-RPC Series
(C) 1997 by BayTech
Rev. F0.04
Circuit Breaker : On
1) . . . OUTLET 1 : Off
2) . . . OUTLET 2 : Off
3) . . . OUTLET 3 : Off
4) . . . OUTLET 4 : Off
RPC >
If the status menu fails to appear, ensure the
correct cables and adapters are being used
and that they are connected properly. Also,
verify the serial communication parameters
are correctly configured.
Controlling Receptacles To set or change the status of the
receptacles, enter one of the following
commands: ON n, OFF n, REBOOT n,
where “n” is the outlet number you want to
command. Entering an outlet number of
“0” sends the command to all outlets.
Reboot only works on outlets which are in
the “ON” condition.
DS-RPC MODULE CONFIGURATION
Accessing Configuration From the DS-RPC Main Menu, select
Menu C, “Configuration,” followed by <cr>. The
following selection menu appears:
Configuration
Module 1 ................................................1
Module 2 ................................................2
Module 3 ……………………………….3
Select Port .............................................S
Exit ........................................................X
Enter Request :

DS-RPC OWNER’S MANUAL
QUICK START
__________________________________________________________________________________________
9
To configure a module, enter the number
associated with that followed by <cr>. For
detailed configuration of each module refer
to:
DS71 or DS71-MD2 page 26
DS74 page 51
DS73 page 53
RPC page 64

DS-RPC OWNER’S MANUAL
INSTALLATION
__________________________________________________________________________________________
10
INSTALLATION
UNPACKING
Compare the unit and serial number of the equipment you received to the
packing slip located on the outside of the box. Log this information on the
sheet on page 70. Inspect equipment carefully for damage that may have
occurred in shipment. If there is damage to the equipment or if materials
are missing, contact BayTech customer service at 228-467-8231 or call
toll free inside the United States at 800-523-2702. At a minimum, you
should receive the following:
a. The DS-RPC Unit
b. This manual with any applicable addendum(s).
c. 1 ea 9FRJ45PC4 adapter
d. 1 ea RJ08X007(RJ45) crossed modular cable
e. 1 ea RJ-11 telco cable -- RJ04X007 (DS71-MD2 only).
f. 1 ea 25MRJ45MD-6 adapter (DS71 only)
NOTE: Keep the shipping container and packing material in the
event future shipment is required.

DS-RPC OWNER’S MANUAL
INSTALLATION
__________________________________________________________________________________________
11
PREPARING THE INSTALLATION SITE
The installation area should be clean and free of extreme temperatures and
humidity. Allow sufficient space behind the unit for cabling.
POWER
CAUTION: This unit is intended for indoor use only. Do not
install near water or expose this unit to moisture. To prevent heat
buildup, do not coil the power cord when in use. Do not use
extension cords. Do not attempt to make any internal changes to
the power source. Do not attempt to modify any portion or
component of a DS-RPC unit unless specifically directed to; as in
Appendix E of this manual. BayTech must perform any internal
changes.
CAUTION: High-voltage surges and spikes can damage this
equipment. To protect from such power surges and spikes, this
unit must have a good earth ground. A grounding screw connection
is located near the power switch on the back of the unit.
CAUTION: Before removing or replacing any modules, turn off
main power switch located on the DS-RPC unit. Communication to
the DS-RPC will be disrupted while power is off.
CAUTION: Before removing or replacing any cables or power
cords, turn off main power switch located on the DS-RPC.
Communication to the unit will be disrupted while power is off.
CAUTION: Do not exceed the AC current rating for the selected
model. (See Appendix A “SPECIFICATIONS” for the DS-RPC).
CAUTION: Although the power switch is turned OFF, the unit is
not totally isolated from the power supply. In order to be
absolutely removed from the power supply, the power cord must
be unplugged from the unit.

DS-RPC OWNER’S MANUAL
INSTALLATION
__________________________________________________________________________________________
12
CAUTION: For PERMANENTLY CONNECTED
EQUIPMENT, a readily accessible disconnect device shall be
incorporated in the fixed wiring. For PLUGGABLE
EQUIPMENT, the socket-outlet shall be installed near the
equipment and easily accessible.
Applying power illuminates a green LED on the front panel of the DS-
RPC. When the power switch is off, devices connected to the unit are not
receiving power.
POWER ON/OFF STATE
Each receptacle is individually controlled by an internal relay. Upon
initialization of power, the status of each receptacle will return to the state
it was in prior to losing power. For example, if Outlet 1 and Outlet 2 are
“ON” and power is removed from the DS-RPC, the status of Outlet 1 and
Outlet 2 will return to “ON” when power is restored to the DS-RPC.
POWER UP SEQUENCE
In order to minimize power surges, the DS-RPC sequences power to each
outlet in the “ON” state in 0.3-second intervals. When power is applied to
the DS-RPC, the initialization sequence requires a delay of 10 seconds
before power is available at the service receptacles. Following the 10-
second delay, the DS-RPC sequences power to each outlet that is turned
“ON.” If you choose the option requesting the DS-RPC to reboot all
connected equipment, the DS-RPC sequences power to each outlet turned
“ON” in 0.1-second intervals.
CIRCUIT BREAKER
In the case of power overload, the circuit breaker automatically trips.
Determine the cause of the tripped circuit breaker, correct the problem
then reset the circuit breaker by depressing the circuit breaker switch.

DS-RPC OWNER’S MANUAL
CABLING
__________________________________________________________________________________________
13
CABLING
RJ-45 CABLES AND ADAPTERS
IMPORTANT: The DS-RPC host communications modules have
an RJ-45 port which uses an 8-pin crossed modular cable to
connect to a local EIA-232 device such as a computer terminal or
external modem. Most serial computers do not have RJ-45
connections; therefore an adapter is provided with this unit to
convert from a DE-9 connector to an RJ-45 connector (Bay Tech
Part No. 9FRJ45PC-4). An adapter to convert from a DB-25
connector to an RJ-45 connector is also available from Bay Tech,
upon request (Bay Tech Part No. 25FRJ45PC-4). The 8-pin
crossed modular cable is configured to operate with these adapters.
CAUTION: All power should be removed from the DS-RPC
prior to removing or installing cables.
Figures 1 and 2 provide visual representation of an RJ-45 receptacle and
plug; pin number assignments are given in Tables 2 and 3.
Fig. 1: RJ-45 Receptacle Fig. 2: RJ-45 Plug
DS73TP CONNECTION
You should connect a straight cable between the RJ-45 ports of the DS73TP
module and the network hub. The “LINK” light will light green when a good
link has been established.