Black Box Data Alarm SW705A User manual

1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax [phone]
© Copyright 1995. Black Box Corporation. All rights reserved.

NOM STATEMENT
NORMAS OFICIALES MEXICANAS (NOM) ELECTRICAL SAFETY
STATEMENT
INSTRUCCIONES DE SEGURIDAD
1. Todas las instrucciones de seguridad y operación deberán ser leídas
antes de que el aparato eléctrico sea operado.
2. Las instrucciones de seguridad y operación deberán ser guardadas
para referencia futura.
3. Todas las advertencias en el aparato eléctrico y en sus instrucciones
de operación deben ser respetadas.
4. Todas las instrucciones de operación y uso deben ser seguidas.
5. El aparato eléctrico no deberá ser usado cerca del agua—por
ejemplo, cerca de la tina de baño, lavabo, sótano mojado o cerca
de una alberca, etc..
6. El aparato eléctrico debe ser usado únicamente con carritos
o pedestales que sean recomendados por el fabricante.
7. El parato eléctrico debe ser montado a la pared o al techo s
ólo como sea recomendado por el fabricante.
8. Servicio—El usuario no debe intentar dar servicio al equipo eléctrico
más allá a lo descrito en las instrucciones de operación. Todo otro
servicio deberá ser referido a personal de servicio calificado.
9. El aparato eléctrico debe ser situado de tal manera que su posición
no interfiera su uso. La colocación del aparato eléctrico sobre una
cama, sofá, alfombra o superficie similar puede bloquea la
ventilación, no se debe colocar en libreros o gabinetes que impidan
el flujo de aire por los orificios de ventilación.
10. El equipo eléctrico deber ser situado fuera del alcance de fuentes
de calor como radiadores, registros de calor, estufas u otros aparatos
(incluyendo amplificadores) que producen calor.

DATA ALARMS
11. El aparato eléctrico deberá ser connectado a una fuente de poder
sólo del tipo descrito en el instructivo de operación, o como se
indique en el aparato.
12. Precaución debe ser tomada de tal manera que la tierra fisica y la
polarización del equipo no sea eliminada.
13. Los cables de la fuente de poder deben ser guiados de tal manera
que no sean pisados ni pellizcados por objetos colocados sobre o
contra ellos, poniendo particular atención a los contactos y
receptáculos donde salen del aparato.
14. El equio eléctrico debe ser limpiado únicamente de acuerdo a las
recomendaciones del fabricante.
15. En caso de existir, una antena externa deberá ser localizada lejos de
las lineas de energia.
16. El cable de corriente deberá ser desconectado del cuando el equipo
no sea usado por un largo periodo de tiempo.
17. Cuidado debe ser tomado de tal manera que objectos liquidos no
sean derramados sobre la cubierta u orificios de ventilación.
18. Servicio por personal calificado deberá ser provisto cuando:
A: El cable de poder o el contacto ha sido dañado; u
B: Objectos han caído o líquido ha sido derramado dentro del
aparato; o
C: El aparato ha sido expuesto a la lluvia; o
D: El aparato parece no operar normalmente o muestra un cambio
en su desempeño; o
E: El aparato ha sido tirado o su cubierta ha sido dañada.
TRADEMARKS USED IN THIS MANUAL
IBM is a registered trademark of IBM Corporation.
Any other trademarks mentioned in this manual are acknowledged to be the property
of the trademark owners.

1
CHAPTER 1: Specifications
Interfaces — SW705A: EIA RS-232;
SW706A: IBM®PC parallel;
SW707A: EIA RS-422 pinned to
RS-530
Leads Monitored — SW705A: Trans. & Recv. Data;
SW706A: STROBE;
SW707A: Transmitted Data
Data Rate — SW705A: Transparent to all
speeds up to 115.2 Kbps;
SW706A: Transparent to all
speeds;
SW707A: Transparent to all
speeds up to 200 Kbps
Maximum Distances — Comply with those given in the
official specification for each
interface
User Controls — (2) Front-mounted:
(1) RESET pushbutton;
(1) DISABLE toggle switch;
(2) Internal:
(1) DIP bar switch for AC-
power selection;
(1) 9-position terminal block
for alarm-output selection
Indicators — (2) LEDs:
(1) Front-mounted: OUTPUT;
(1) Rear-mounted: POWER
1. Specifications

2
DATA ALARMS
Connectors — (2) Front-mounted:
(1) DB25 female for data
output, (1) IEC 320 power
outlet;
(2) Rear-mounted:
(1) DB25 male for data input,
(1) IEC 320 power inlet
Leads/Signals
Supported — All (transparent to all signals)
Fuse — 5-amp Slo-Blo
MTBF — 67,000 hours
Maximum Altitude — 15,000 ft. (4572 m)
Operating Temp. — 32 to 158˚F (0 to 70˚C)
Storage Temp. — 23 to 212˚F (–5 to 100˚C)
Humidity — 0 to 95% noncondensing
Enclosure — High-impact plastic
Power — From outlet:
Either 120-VAC, 60 Hz, or
240-VAC, 50 Hz (user-
selectable) through
detachable 6-ft. (1.8-m) line
cord to internal power supply
Size — 2.5"H x 8"W x 6.3"D
(6.4 x 20.3 x 16 cm)
Weight — 2 lb. (0.9 kg)

3
CHAPTER 2: Introduction
Your Data Alarm alerts your personnel to abnormal
conditions by providing AC power to another device (such
as an alarm light, bell, or buzzer) when data from a third
device (such as a sensor, computer, or intelligent shop-
floor machine) starts flowing through the Alarm on its way
to a fourth device (such as a printer or modem). You can
install the alarm directly into the cable path that you want
it to monitor. Figure 2-1 on the next page shows a typical
application.
Data Alarms are currently available in three versions: The
RS-232 Data Alarm (SW705A) monitors the Transmitted
Data (TD) and Receive Data (RD) leads on a serial RS-232
line; the Parallel Data Alarm (SW706A) monitors the
STROBE lead on a parallel line; and the RS-422 Data
Alarm monitors the Transmitted Data (TD) lead on a
serial RS-422 line pinned to the RS-530 specification.
(If you are using a different type of interface, or if your
application requires the Data Alarm to react to the absence
rather than the presence of data, call your supplier for
technical support. They might be able to give you a
quote on a custom unit.)
If you want the Data Alarm to switch dry contacts instead
of AC power, you can easily select this function by rewiring
the terminal strip inside the Alarm. See Section 3.2.
2. Introduction

4
DATA ALARMS
Figure 2-1. A typical application for an RS-232 Data Alarm.
Pipeline
RS-232
Pressure Sensor
RS-232
Data Alarm
Wall
Outlet
Alarm
Bell
RS-232 Serial Printer
Data In
Data Out
AC In
AC Out

5
CHAPTER 3: Installation
3.1 Before You Install
As you unpack your Data Alarm, make sure that you
received (1) Alarm unit, (1) detachable power cord, and
(1) copy of this manual. If you didn’t receive something,
or if anything is damaged, notify your supplier immediately.
Before installing your Data Alarm, put on insulated
gloves. (You should always wear gloves when installing
cabling or in-line devices, especially when significant
voltages could be transmitted across the cables.) We also
recommend that, where possible, you turn off the data-
source device (the one whose data transmissions you want
the Data Alarm to monitor) and data-destination device
and disconnect them from their power sources.
CAUTION!
During installation, you should never work on both
sides of your data circuit at the same time. Do not
connect both cables to your Alarm simultaneously—if
you do, you could become part of a circuit and risk
electrical shock.
3. Installation

6
DATA ALARMS
3.2 The Installation Procedure
To install your Data Alarm, take these steps:
1. Place the Data Alarm somewhere between the
devices you want to connect, within 6 ft. (1.8 m)
of a working AC outlet.
2. Set the Alarm’s DISABLE switch to the DISABLE
(up) position.
3. If you are using 120-volt AC power, go on to Step 4.
If you want 240-VAC output, you will have to set the
Data Alarm’s internal power-selection DIP switch.
CAUTION!
When the Data Alarm is plugged in, 120 or 240 volts of
AC power passes through its circuitry. NEVER open
the unit or make any internal adjustments to it while it
is plugged into a source of AC power.
First open the Alarm: Unscrew and remove the two
Phillips screws on the bottom of the unit and remove
its cover. You will see a DIP bar switch labeled “S3”
and “120-VAC↔240-VAC” on the Alarm’s circuit
board. Move this switch to the “240-VAC” position.
4. If you want the Alarm’s output to be switched-ON AC
power (power comes on when data is sensed), go on
to Step 5. If you want switched-OFF AC power (power
goes out when data is sensed) or dry-contact (relay
switches when data is sensed) output, you will have
to rewire the Alarm’s terminal block. If you haven’t
already, open the Alarm (see the previous step). You

7
CHAPTER 3: Installation
Figure 3-1. The internal AC-power and relay wiring
of the Data Alarms.
OUTPUT
INPUT
TERMINAL
BLOCK TB1
1 Normally Closed
2 Relay Arm
3 Normally Open
4 AC (Hot) Out
5 AC Neutral Out
6 Earth (AC Ground) Out
7 Earth (AC Ground) In
8 AC Neutral In
9 AC (Hot) In
Terminals:
Number Designation
Neutral
Factory-
Installed
Jumper
Ground
Hot
Neutral
Ground
Hot
FRONT
REAR

8
DATA ALARMS
will see a terminal strip labeled TB1 on the Alarm’s
circuit board. The terminals are wired as shown in
Figure 3-1 on the next page.
To get switched-OFF AC-power output, remove
the jumper between terminals 3 and 4 and install
a jumper between terminals 1 and 4.
To get dry-contact output, remove the jumper wire
between terminals 3 and 4, then connect your
common lead to terminal 2 and your switched lead(s)
to terminal 1 and/or terminal 3. The simple way to do
this is to disconnect the AC-out wires from terminals
2, 5, and 6, take out the Data Alarm’s removable
outlet block, and run your wiring through the hole.
You could also do this by detaching one or both
of the AC neutral out and AC ground out wires
from terminals 5 and 6 and reattaching it/them to
terminal 1 and/or 3; this way, you can easily plug
your wiring into, and unplug it from, the Data
Alarm’s outlet. (As long as no jumpers or wiring are
connected to terminal 4, there is no danger of AC
power coming out of the Data Alarm’s outlet.)
For help with this rewiring, call Black Box for
technical support.
5. If you opened the Alarm in step 3 or 4, close it by
replacing its cover and screwing the two screws
back in.
6. If you haven’t already, plug one of your data cables
into the data-source device (the one whose output you
want the Alarm to monitor). (As you attach your cables
to devices, make sure the connectors are firmly seated.)

9
CHAPTER 3: Installation
7. Run this cable to the Data Alarm’s location and
plug its other end, which must be a DB25 male
connector, into the INPUT port on the Alarm’s
rear panel, making sure to tighten the screwlocks.
8. If you haven’t already, plug the other cable into the
data-destination device. Run that cable to the Data
Alarm’s location and plug its other end into the
OUTPUT port on the Alarm’s front panel, again
tightening the screwlocks.
9. Once you’ve finished connecting the data lines, plug
the alarm device (the one you want to get power if
the Data Alarm detects data traffic) into the outlet
on the Data Alarm’s front panel.
10. Now plug the female end of the Data Alarm’s power
cord into the power inlet on the Alarm’s rear panel.
Plug the male end of the cord into a working AC
outlet. The POWER LED on the Alarm’s rear panel
should light up.
11. Move the DISABLE switch on the Data Alarm’s
front panel to the ENABLE (left) position.
12. Plug in and turn on the data-source and data-
destination devices. If the alarm device has a
POWER ON/OFF switch, turn it on as well.
This completes your Data Alarm installation. The Alarm
system should be ready for continuous operation.

10
DATA ALARMS
Once you have installed the Data Alarm and plugged it
in, nothing further needs to be done to make the Alarm
operational. Unless it stops receiving power or is damaged,
the Alarm will monitor the connected data line
indefinitely.
However, we strongly recommend that you test your
Alarm system before you depend on it to function properly
in an emergency situation. To do this, force your data-
source device to send data; you might be able to do this
easily if the data-source device has a “test” setting. As soon
as the Data Alarm senses the presence of data (both now,
for this test, and in all future alarm conditions), the
OUTPUT LED on the front panel of the Data Alarm
should light up, the alarm device should emit its alarm,
and the data-destination device should begin receiving
the data.
Assuming everything works, then to stop the alarm (both
now, in this test, and in all future alarm conditions), press
the RESET button on the Data Alarm’s front panel. This
will cut power to the alarm device, but it will not stop data
from flowing to the destination device. Be aware, however,
that as long as it continues to sense data, the Data Alarm
will resume providing AC power as soon as you release the
RESET button. For the Data Alarm to be fully restored to
its normal monitoring state, you must wait until the data
stops flowing through it, then press RESET.
4. Operation

11
CHAPTER 4: Operation
If the first test fails, check each of these possibilities
and repeat the test:
• Make sure all of your data cables and AC power
cords are securely attached.
• Make sure all of the devices connected to the Data
Alarm are plugged in and turned on. (The Data
Alarm has no POWER ON/OFF switch—it begins
operating as soon as it is plugged in.)
• Make sure the Data Alarm’s DISABLE switch is in
the ENABLE (left) position.
If the second test fails and you can’t figure out why,
call Black Box for technical support.
If at any time you want to send data from the source
device to the destination device without triggering the
Data Alarm, move the Data Alarm’s DISABLE switch to the
DISABLE (right) position—but be very careful to return
this switch to the ENABLE (left) position when the
transmission is finished.

12
DATA ALARMS
5.1 Calling Black Box
If you determine that your Data Alarm is malfunctioning,
do not attempt to alter or repair it. Contact Black Box Tech
Support. The problem might be solvable over the phone.
Before you do, make a record of the history of the
problem. We will be able to provide more efficient and
accurate assistance if you have a complete description,
including:
• The nature and duration of the problem.
• When the problem occurs.
• The components involved in the problem.
• Any particular application that, when used,
appears to create the problem or make it worse.
5.2 Shipping and Packaging
If you need to transport or ship your Data Alarm:
• Package it carefully. We recommend that you use
the original container.
• If you’re shipping the Alarm for repair or return,
include everything you received with it. Before you
ship the Alarm for repair or return, contact Black
Box to get a Return Materials Authorization (RMA)
number.
5. Troubleshooting

NOTES

FEBRUARY 1995
SW705A
SW706A
SW707A
Data Alarms
CUSTOMER SUPPORT INFORMATION
Order toll-free in the U.S. 24 hours, 7 A.M. Monday to midnight Friday: 877-877-BBOX
FREE technical support, 24 hours a day, 7 days a week: Call 724-746-5500 or fax [phone]
Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
Web site: www.blackbox.com • E-mail: [email protected]
OUTPUT
O
U
T
P
U
T
R
E
S
E
T
D
I
S
A
B
L
E
RS-422 Data Alarm