Bay Technical Associates DS4-RPC, S2-RPC User Manual

OWNER'S MANUAL

________________

DS-RPC

DATA SWITCH/POW ER CONTROL

FOR MODELS
DS2-RPC
DS4-RPC

Including the
DS71
DS71-MD2
DS74 &
DS73
Modules

BayTech Manual Publication #U140A124-01

August 1998

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 prod uct a nd regi stere d t rade mark of Da tas tor m
Technologies, Inc.

Windows 95
Corporation.



is a product and registered trademark of Microsoft

ii

DS-RPC OWNER’S MANUAL
ABOUT THIS OWNER’S MANUAL
________________ _____________________________________________________ _____________________

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
States using

www.baytechdcd.com

228-467-8231

1-800-523-2702

.

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:

, call toll free from anywhere in the United

or contact us at our Web Site,

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:

<cr>:

This term is used to denote items of interest to the user.

Carriage Return or ENTER

iii

DS-RPC OWNER’S MANUAL
ABOUT THIS OWNER’S MANUAL
________________ _____________________________________________________ _____________________

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.

iv

DS-RPC OWNER’S MANUAL
TABLE OF CONTENTS
__________________________________________________________________________________________

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

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DS-RPC OWNER’S MANUAL
TABLE OF CONTENTS
__________________________________________________________________________________________

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

vi

DS-RPC OWNER’S MANUAL
TABLE OF CONTENTS
__________________________________________________________________________________________

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

vii

DS-RPC OWNER’S MANUAL
INTRODUCTION TO THE DS-RPC
________________ _____________________________________________________ _____________________

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.

1

DS-RPC OWNER’S MANUAL
INTRODUCTION TO THE DS-RPC
________________ _____________________________________________________ _____________________

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 consist s of two s lots for a hos t co mmu nicat ion s
module and a peripheral communication s m odule . The D S4-RPC base unit
consists of four slots for a host co mmu nicat ion s mo dule and u p to t hree
peripheral communications modu les. B oth c ontro l the four power outlets,
LEDs, non-volatile storage, and da ta flow between connected modules. The
data bus is an internal matrix of h ig h speed serial c hannels t hat al low s
independent and simultaneous trans mis sio n of data between modules.

The DS71 host communica tio ns modu le 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 sy stems
communications. The DS71-MD2 has a hig h speed EIA-232 port and an
internal modem for remote or local data acqu isiti on an d con trol. 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.

2

DS-RPC OWNER’S MANUAL
INTRODUCTION TO THE DS-RPC
________________ _____________________________________________________ _____________________

PROGRAMMABLE FEATURES OF THE DS MODULES

Highlighted features indicate items most often programmed

FEATURE DESCRIPTION ACTION PAGE

NO.

DS71 or DS71-MD2 H

OST MODULE

Serial Port
Configuration

Port Device
Name

Port Select Code

Attention
Character

Disconnect
Time Guard

Port ID Echo

Header

Password

Menu

Sets serial port speed of the DS71 and
DS71-MD2

Xon/Xoff Disabl ed

Uniquely identifies the port (or device
connected to the port).

EIA-232 and Host MODEM (DS71­MD2 only)

ASCII character string used to select a
port or module.

A character sent in sequence five times
to invoke the ma in menu.

Default = ;

Provides reliable binary data
transmission.

Echoes the module number and po r t
number when y o u connect to the port.

Default = Disabled

Unit information that appears upon login

Default = DS71 or DS71-MD2

Password protection for dial-up and
EIA-232 connections.

Default = Disabled

Provides a menu interface for device
selection, and configuration.

Default = Enabled

Default = 9600, 8, 1, N,

Default = Host

Default = $BT

Default = Disabled

Enter baud rate, data bits,
stop bits, parity, and
Xon/Xoff

Enter the device name 34

Enter Port Select Code 35

Enter Attention Character 36

Enable/Dis able Disconnect
Time Guard

Enable/Disable Connect Port
ID Ech o

Enable/Disable Header 39

Enable/ Disable, and Program
Password

Enable/Disable Menu 41

28

37

38

40

Auto Connect
Port

DCD
Logon/Logoff
(DS71 only)

Table 1

Allows automatic connection to a
specified port up on dial-up or
EIA-232 connection.

Default = Disabled

External modem returns to logoff state
when DCD line goes low.

Default = Enabled

Enable,/Di sable, and Program
Auto Connect Port.

Enable/Disable menu
selection and make hardware
jumper change

42

44

3

DS-RPC OWNER’S MANUAL
INTRODUCTION TO THE DS-RPC
________________ _____________________________________________________ _____________________

PROGRAMMABLE FEATURES OF THE DS MODULES
(con’t)

FEATURE DESCRIPTION ACTION PAGE

NO.

DS71-MD2 H

OST MODULE

Rings to
Answer(*)

Modem to
Modem
Xon/Xoff(*)

Connectivity
Timeout(*)

Escape
Character(*)

Unit ID

Serial Port
Configuration

Port Device
Name

Table 1 (con’t)

The number of time s the modem rings
before it automatically answers.

Default = 2 rings

ASCII character used to stop or start
transmission of data.

Default = Disabled

Configures the amount of connectivity
(5 to 255 minutes) before modem
disconnects.

Allows ASCII characters to be
interpreted as commands instead of data.

Default = 43 (+)

Unique ID for DS-Series unit.

Default = DS71 or DS71-MD2

Sets serial port speed for each I/O port
on the DS74

Xon/Xoff Disabl ed, RTS/DTR Low

Unique ID for each I/O port as displayed
on the main menu.

Device B, Device C, Device D, etc

Default = 60 minutes

DS74 P

ERIPHERAL

. Default = 9600, 8, 1, N,

Default = Device A,

.

Enter number of rings to
auto answer

Enable/ Disa bl e Modem to
Modem

Enter timeout in minutes.
Enter 0 to disable

Enter the character you wi sh
to use as an escape

Enter unit ID 48

I/O M

ODULE

Enter baud rate, data bits,
stop bits, parity, Xon/Xoff,
and DTR/RTS line driver

Enter port device name 52

45

46

47

48

52

4

DS-RPC OWNER’S MANUAL
INTRODUCTION TO THE DS-RPC
________________ _____________________________________________________ _____________________

PROGRAMMABLE FEATURES OF THE DS MODULES
(con’t)

FEATURE DESCRIPTION ACTION PAGE

NO.

DS73TP N

ETWORK MODULE

Module IP
Address

Dial-in IP
Address

Subnet Mask

Gateway

Primary DNS

Secondary DNS

Primary NBNS

Secondary
NBNS

User Name

Password

Module Name

IP Address for the DS73TP to access the
network.

IP Address for the network to access the
DS73TP.

Consists of four bytes, each byte ranging
from 0 to 255.

Consists of four bytes, each byte ranging
from 0 to 255.

Primary Domain Name System address.

Default = 0.0.0.0

Secondary Domain Name System
address.

Primary Net BIOS Name Server.

Default = 0.0.0.0

Secondary Net BIOS Name Server.

Default = 0.0.0.0

Unique User ID.

Password for the Dial-Up PPP.

Unique ID for the module.

Default = DS73TP

Default = 0.0.0.0

Default = 0.0.0.0

Default = 0.0.0.0

Default = 0.0.0.0

Default = 0.0.0.0

Default = user1

Default = BTA

Enter the IP Address in
dotted decimal forma t 0.0.0.0

Enter the IP Address in
dotted decimal forma t 0.0.0.0

Enter the Subnet Mask in
dotted decimal forma t 0.0.0.0

Enter the Gateway in dotted
decimal format. 0.0.0.0

Enter Primary DNS Address 57

Enter Secondary DNS
Address

Enter Primary NBNS
Address

Enter Secondary NBNS
Address

Enter User Name up to 8
characters

Enter Password up to 8
characters

Enter Module Name up to 8
characters

54

55

56

57

58

59

59

60

60

61

5

DS-RPC OWNER’S MANUAL
QUICK START
__________________________________________________________________________________________

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

NOTE:

The DS71 and DS71-MD2 have some menus that are

different. Where this situation occurs it will be addressed.

6

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:

DS-RPC OWNER’S MANUAL
QUICK START
__________________________________________________________________________________________

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.

Selecting a Device

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 (;;;;;).

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 (;;;;;).

7

DS-RPC OWNER’S MANUAL
QUICK START
__________________________________________________________________________________________

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

C, “Configuration,” followed by <cr>. The

Menu

From the DS-RPC Main Menu, select

following selection menu appears:

Configuration

Module 1 ................................................1

Module 2 ................................................2

Module 3 ……………………………….3

Select Port .............................................S

Exit ........................................................X

Enter Request :

8

DS-RPC OWNER’S MANUAL
QUICK START
__________________________________________________________________________________________

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

9

DS-RPC OWNER’S MANUAL
INSTALLATION
________________ _____________________________________________________ _____________________

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.

10

DS-RPC OWNER’S MANUAL
INSTALLATION
________________ _____________________________________________________ _____________________

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.

11

DS-RPC OWNER’S MANUAL
INSTALLATION
________________ _____________________________________________________ _____________________

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 DS­RPC. 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 10­second 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.

12

DS-RPC OWNER’S MANUAL
CABLING
________________ _____________________________________________________ _____________________

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.

13

DS-RPC OWNER’S MANUAL
CABLING
________________ _____________________________________________________ _____________________

Tables 2 and 3 define the pin lay out for t he DS71 or D S7 1-MD2 an d D S74.

DS71 EIA-232 RJ-45 Pin/Signal Definition

Pin EIA-232

Signal

1 Handshake

Out

(DTR) Line Driver Inactive State = High: +12V when power is
applied. Used as a handshake line to enable/disable the receiving of
characters.

2 Gnd Signal ground

Description

3 Handshake

Out

(RTS) Line Driver Inactive State = High: +12 V when power is
applied. Not used to enable/disable.

4 TX Out Transmit Data (data out)

5 RX In Receive Data (data in)

6 HandshakeIn(DSR) Handshake In. –12V when not used.

7Gnd or

DCD In

Signal ground when Jumper JP6-2 is connected to JP6-3. In order
for the DS71 to take advantage of “DCD Logon/Logoff” and “Auto
Connect Port”, Jumper JP6-2 is connected to JP6-1 providing DCD
In.

8 HandshakeIn(CTS) Used as a handshake line to enable/disable the receiving of

characters.

Table 2 DS71 PIN SIGNAL DEFINITION

14

DS-RPC OWNER’S MANUAL
CABLING
________________ _____________________________________________________ _____________________

DS74 EIA-232 RJ-45 Pin/Signal Definition

Pin EIA-232

Signal

1 Handshake

Out

2 Gnd Signal ground

(DTR) Line Driver Inactive State = Low: Used as a handshake line
to enable/disable the receiving of characters. –12V when port is not
selected unless programmed differently.

Description

3 Handshake

Out

4 TX Out Transmit Data (data out)

5 RX In Receive Data (data in)

6 HandshakeIn(DSR) Handshake In. +12V when not used.

7 Gnd Signal ground

8 HandshakeIn(CTS) Used as a handshake line to enable/disable the receiving of

Table 3 DS74 PIN SIGNAL DEFINITION

(RTS) Line Driver Inactive State = Low: –12V when port is not
selected unless programmed differently.

characters.

The DS74 module has four RJ-45 ports for connecting to
peripheral devices. BayTech has a complete line of modular
adapters and cables that may be helpful with your installation. For
more information on these cables and adapters, contact BayTech’s
Applications Engineers.

15

DS-RPC OWNER’S MANUAL
CABLING
________________ _____________________________________________________ _____________________

MODEM CONNECTIONS

In addition to the RJ-45 port, the DS71-MD2 Host Communications
Module has two RJ-11 ports for connecting to telephone lines. You may
connect either RJ-11 port to a Telco wall jack using a standard RJ-11
straight through cable. These ports are in parallel and the second port is
available for another telco device.

Connect an external modem to the EIA-232 serial port on the DS7 1 ho st
module by using the 25MRJ45 MD-6 adap ter and RJ08X00 7 8-bit cro ssed
modular cable supplie d wi th thi s un it.

16

Fig 3: MD-6 MODEM Serial Port Adapter
BayTech Part No 25MRJ45MD-6

DS-RPC OWNER’S MANUAL
CABLING
________________ _____________________________________________________ _____________________

IMPORTANT:

Use crossed RJ-45 cables

when using modular
connectors to interface the DS-Series to another Bay Tech product
with modular connectors, s uc h as the RP C Remo te Powe r Contro l
Unit.

RJ-45RJ-45

CONDUCTOR

COLOR

BLUE

ORANGE

BLACK

RED

GREEN

YELLOW

BROWN

GRAY

PIN

1

2

3

4

5

6

7

8 8

Fig 4: Crossed 8-pin Modular Cable
BayTech Part No. RJ08X007

PIN

1

2

3

4

5

6

7

COLOR

BLUE

ORANGE

BLACK

RED

GREEN

YELLOW

BROWN

GRAY

Fig 5: DE-9 PC Serial Port Adapter

BayTech Part No. 9FRJ45PC4

17

DS-RPC OWNER’S MANUAL
DETAILED OPERATION AND CONFIGURATION
__________________________________________________________________________________________

DETAILED OPERATION AND
CONFIGURATION

The following section, “Detailed Operation and Configuration,” provides a
detailed approach to accessing, operating, and configuring the DS-RPC.

NOTE

Any combination of wrong entries results in an error message.

: It is important that you type all commands correctly.

CONNECTING TO THE DS-RPC

EIA-232 SERIAL
CONNECTION

The DS71 Host Module has an RJ-45 port
for connecting 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
(BayTech Part No. 9FRJ45PC-4). If you are
connecting to a modem, use a modem
adapter (BayTech Part No. 25MRJ45MD-6)
and an RJ08X007 8-pin crossed modular
cable.

BayTech also manufactures a
computer/terminal adapter (BayTech Part
No. 25FRJ45PC-4) for converting from a
DB-25 connector to an RJ-45 connector.

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If you require a different adapter than the
one supplied with this unit, contact
BayTech’s Applications Engineers.

Using the 9FRJ45PC-4 adapter (or other
adapter) and the RJ08X007 crossed modular
cable, connect the serial port of your
computer to the RJ-45 port labeled EIA-232
on the DS71 or DS71-MD2 module.

DS-RPC OWNER’S MANUAL
DETAILED OPERATION AND CONFIGURATION
__________________________________________________________________________________________

Load serial port communications software.
Configure serial communications parameters
for the host terminal to match the DS71 or
DS71-MD2 module. The DS71 or DS71­MD2 modules have factory serial
communications parameters of 9600 bps, 8
data bits, 1 stop bit, no parity, XON/XOFF
disabled.

INTERNAL MODEM
CONNECTION
(DS71-MD2 ONLY)

IMPORTANT:

The DS71-MD2 modem option has priority over
the EIA-232 serial port. If a serial port user is in configuration
mode or connected to a DS74 I/O port when a modem connection
is established, the serial port user will be “booted” off allowing the
remote user to communicate with the DS unit.

NOTE:

Both “LINE” ports are active and either can be used.

The second “LINE” port is available for growth.

EXTERNAL MODEM
CONNECTION

The DS71-MD2 has a 14.4K bps internal
modem for remote access.

Using the RJ04X007 (RJ-11) modular cable,
connect either port labeled “LINE” on the
DS71-MD2 module to the telco wall jack.
Using communications software, dial the
modem using the ATDT command.

Using the 25MRJ45MD-6 adapter (or other

applicable adapter) and the RJ08X007

crossed cable, connect the COM (or serial)
port of the modem to the RJ-45 port labeled
EIA-232 on the DS71 or DS71-MD2
module. Using an RJ04X007 (RJ-11)
modular cable, connect the port labeled
“LINE” on the modem to the telco wall jack.
Using communications software package,
dial the modem.

19

DS-RPC OWNER’S MANUAL
DETAILED OPERATION AND CONFIGURATION
__________________________________________________________________________________________

10BASE-T NETWORK
PORT CONNECTION

Using a straight 10Base-T cable, connect the
RJ-45 port labeled ETHERNET on the
DS73TP module to an RJ-45 port on the
network hub. The LINK (link integrity)
LED, located on the front panel of the
DS73TP, illuminates when a good
connection is established between the
DS73TP and the hub.

20

DS-RPC OWNER’S MANUAL
DETAILED OPERATION AND CONFIGURATION
__________________________________________________________________________________________

OPERATION

ACCESSING MAIN
MENU

heading and main menu appears if using the

NOTE:

The DS71 and DS71-MD2 have some menus which are

different. Where this situation occurs it will be addressed.

Power on the DS-RPC. A similar

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,

Logout.......................................T

Enter Request:

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.

21

DS-RPC OWNER’S MANUAL
DETAILED OPERATION AND CONFIGURATION
__________________________________________________________________________________________

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

: Depending on the DS-RPC model, the menus may vary

according to the number of DS74 modules installed in the unit.

If this is not an initial set-up and Password
has already been enabled, you are prompted
to login. After logging in successfully,
invoke the main menu by sending the
attention character five times (;;;;;).

NOTE:

Password feature is case sensitive.

22

DS-RPC OWNER’S MANUAL
DETAILED OPERATION AND CONFIGURATION
__________________________________________________________________________________________

SELECTING A DEVICE

There are two methods of selecting a device,
menu driven selection and ASCII character
string method.

Menu Driven
Selection

From the main menu, select the number that

corresponds to the device you wish to

ASCII Character
String

operating the DS-RPC is the ASCII

access, followed by <cr>. To return to the
main menu, send the attention character five
times (;;;;;).

Another method of selecting devices and

character string method. To select a device
located on a peripheral module port, send
the port select code

(default is $BT),

the
module number, a comma, and then the port
number, followed by <cr> (there are no
spaces in the string). For example, to select
port 4 located on module 2, type BT2,4<cr>.
To select port 1 on module 9 (DS9 model),
type $BT9,1<cr>. To disconnect, type
$BT<cr>, then the attention character.

To configure a module, type $BT and the
module number followed by <cr>, then
$CONFIG followed by <cr>. This will allow
access to the configuration menu for that
module. Once configuration is complete,
type X for “Exit” followed by <cr>. To
access the main menu, type the attention
character five times.

NOTE:

You must exit main menu to send ASCII character string

commands.

NOTE:

While operating using the ASCII Character String method,

consider placing the DS-RPC in binary mode.

23