Copyright 2008 by Bay Technical Associates, Inc.
BayTech, is a registered trademarks of Bay Technical Associates, Inc.
Windows 2000®, Windows XP® are products and registered trademark of Microsoft
Corporation.
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RPS with or without Ethernet
ABOUT THIS OWNER’S MANUAL........................................................................................................4
This document provides information required for installing and operating your Bay Tech equipment. It
should allow the user to connects, 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 228-563-7334, or toll free from anywhere in the United
States using 1-800-523-2702 or contact us at our Web Site, www.baytech.net.
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 above numbers or visit our web
site.
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.
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.
BayTech units are in accordance with the general requirements of Standard for Information Technology Equipment (ETL listed, conforms to ANSI/UL STD 60950-1-2003 CERTIFIED
CAN/CSA C22.2 NO. 60950-1-03, UL STD 231 8TH EDITION, UL STD 1950 3RD EDITION
CERTIFIED CAN/CSA 22.2 NO. 950-95, CE conforms to IEC 60950-1).
Model number description: RPS28 ADEN -30NC
RPS28 = base unit RPS28 group A = High Voltage
D = LCD E = Environmental Ports front panel
N = Network, Ethernet port F = Front panel LCD
L = LED S = Sensor = Environmental port
-30 = Unit rated Amperage NC = Normally Closed Relays upon initial and default power on.
We welcome any comments you may have about our products, and we hope that you will continue to
look to BayTech for your remote management needs.
<cr>: Carriage Return or ENTER
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RPS with or without Ethernet
Connection Description
BayTech's RPS Series unit provides a Serial EIA232 interface that controls user access and outlet
controls to the power strip.
CAUTION: All power should be removed from the BayTech unit prior to removing or
installing cables and /or adapters.
EIA-232 SERIAL CONNECTION
The RPS has 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 RJ45 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.
INSTALLATION
UNPACKING
Compare the unit and serial number of the equipment you received to the packing slip located on the
outside of the box. 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 technical support at 228-563-7334 or call toll free inside the United States at 800-523-2702. At a minimum, you should receive
the following:
1. The RPS unit.
2. Manual insert describing the location of the User’s Guide on BayTech’s website at
www.baytech.net.
3. Power Cords that may be attached to the unit (if order requested detachable cords).
4. 1 ea. DE-9 (9 pin) PC com port adapter -- 9FRJ45PC (with Cisco Interface) or 9FRJ45PC-1.
5. 1 ea. RJ-45 Roll over cable -- RJ08X007.
NOTE: Keep the shipping container and packing material in the event future shipment is
PREPARING THE INSTALLATION SITE
The installation area should be clean and free of extreme temperatures and humidity. Allow sufficient
space behind the RPS unit for cabling and receptacle connections.
POWER
required.
• 120 VAC Model: Internal 120 VAC 60 Hz (15, 20 or 30 Amps Maximum Load).
• 230 VAC Model: Internal 230 VAC 60 Hz (10, 15, 16, 20, 30, or 32 Amps Maximum Load).
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 an RPS Series Unit unless specifically directed
to by BayTech personnel. BayTech must perform any internal operations.
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 or good power surge
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RPS with or without Ethernet
CAUTION: Do not exceed the AC current rating for the selected model. (See
http://www.baytech.net/products/RPSseries.shtml for each RPS model).
protection.
CAUTION: In order to be absolutely removed from the power supply, the power cord must be
unplugged from the power source.
CAUTION: For PERMANENTLY CONNECTED EQUIPMENT, a readily accessible
disconnect device (Circuit Breaker rated not to exceed the amperage rating of the unit) shall be
incorporated in the fixed wiring between the power source and the Baytech unit. For
PLUGGABLE EQUIPMENT, the socket-outlet shall be installed near the equipment and easily
accessible. The outlets providing power to the unit shall be protected against over current and
short circuit by suitable rated protective devices.
Applying power illuminates a green LED on the front panel of the RPS. When the power
switch is off, devices connected to the unit are not receiving power.
CIRCUIT BREAKER
Depending on if the unit has circuit breakers, 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. If an overload condition occurs, the RPS
status menu is still accessible. If all circuits are closed, the circuit breaker status menu will indicate
“On.” If the circuit breaker is tripped, the circuit breaker status will indicate “Off.” If no power cord is
attached to the “IN” receptacle, the circuit breaker status will indicate “Off”, indicating there is no
power available to the “OUT” receptacle.
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RPS with or without Ethernet
CABLING
RJ-45 Cable
RPS RJ-45 pin Signals
Pin EIA 232
Signal
1 DTR Out
2 GND Signal Ground
3 RTS Out
4 TX Out Transmit (Data Out)
5 RX In Receive (Data In)
6 N/C In
7 GND Signal Ground
8 DCD In
Adapter signals
Listed are the pin specifications for the BayTech cable and adapters and the terminal COM ports:
Signal
Direction
Description
+10V when activated by DCD. Toggles on logout for modem disconnect.
+10 V when power is applied. Not used as a handshake line.
No Connection.
DCD into the RPS.
Signal RS-232
Port (DS)
RS-232
Port (RPS)
COM Port
DE-9 Pin
COM Port
DB-25 Pin
Signal
DTR 1 1 4 20 DSR
GND 2 2 1 GND
RTS 3 3 7 5 CTS
TXD 4 4 3 2 RXD
RXD 5 5 2 3 TXD
DSR 6 N/C 6 6 DTR
GND 7 7 5 7 GND
CTS 8 8 4 RTS
DTR 4 DCD
DCD 8 1 8 DTR
RI 9 22
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