CUSTOMER
SUPPORT
INFORMATION
Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500)
FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746
Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
Web site: www.blackbox.com • E-mail: info@blackbox.com
APRIL 2001
AC844A
AC844AE
CAT5 ClassWork Plus Multiloop
1
FCC INFORMATION
FEDERAL COMMUNICATIONS COMMISSION
AND
INDUSTRY CANADA
RADIO FREQUENCY INTERFERENCE STATEMENTS
This equipment generates, uses, and can radiate radio frequency energy and if not
installed and used properly, that is, in strict accordance with the manufacturer’s
instructions, may cause interference to radio communication. It has been tested
and found to comply with the limits for a Class A computing device in accordance
with the specifications in Subpart J of Part 15 of FCC rules, which are designed to
provide reasonable protection against such interference when the equipment is
operated in a commercial environment. Operation of this equipment in a
residential area is likely to cause interference, in which case the user at his own
expense will be required to take whatever measures may be necessary to correct
the interference.
Changes or modifications not expressly approved by the party responsible
for compliance could void the user’s authority to operate the equipment.
This digital apparatus does not exceed the Class A limits for radio noise emission from
digital apparatus set out in the Radio Interference Regulation of Industry Canada.
Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites
applicables aux appareils numériques de la classe A prescrites dans le Règlement sur le
brouillage radioélectrique publié par Industrie Canada.
2
CAT5 CLASSWORK PLUS MULTILOOP
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 aparato eléctrico debe ser montado a la pared o al techo sólo 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.
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.
3
NOM STATEMENT
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 equipo 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.
4
CAT5 CLASSWORK PLUS MULTILOOP
TRADEMARKS USED IN THIS MANUAL
Linux is a registered trademark of Linus Torvalds.
Novell is a registered trademark of Novell Incorporated.
PS/2 is a registered trademark of International Business Machines Corporation.
Windows and Windows NT are registered trademarks of Microsoft Corporation.
UNIX is a registered trademark of UNIX System Laboratories, Inc.
Any other trademarks mentioned in this manual are acknowledged to be the property of the
trademark owners.
5
CONTENTS
Contents
Chapter Page
1. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.1 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.2 Installation Steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.3 Mapping the Classroom Layout Using ClassWork Plus Multiloop. . 10
6
CAT5 CLASSWORK PLUS MULTILOOP
1. Specifications
Maximum Number of Workstations: 63 +1
Topology: Tree
Management: (1) Instructor Control Unit (hardware management unit) for every
Instructor Interface Unit
Platforms: PC or PS/2
®
Resolution: 1280 x 1024; 75 MHz
Cabling: CAT5 FTP (Foil Shielded Twisted Pair) solid wire 2 x 4 x 24 AWG
(America Wire Gauge) cable with RJ-45 male connectors attached at each end
Transmission Distance: Maximum 980 ft. (300 m)
Operating Systems Supported: Windows
®
9x, Windows NT®, Windows 2000,
Novell
®
, DOS, Linux, UNIX
®
Temperature: Operating: Up to 158°F (70°C); Storage: -40 to +158°F (-40 to
+70°C)
Power: AC844A: Input: 120 VAC, 60 Hz, 20 watts; Output: 9 VAC, 1400 mA;
AC844AE: Input: 230 VAC, 50 Hz
Size: 1.75"H x 8.75"W x 6.4"D (4.5 x 22.2 x 16.3 cm)
Weight: 0.5 lb. (0.2 kg)
7
CHAPTER 2: Introduction
2. Introduction
The CAT5 ClassWork Plus classroom has one long loop that connects up to 31
student units with the teacher unit. With the ClassWork Plus Multiloop, you can
have up to five smaller loops in one classroom, giving you the following advantages:
• Lets you connect up to 63 Student Units to the ClassWork Plus system.
• Increases the overall system cable distance of up to 980 ft. (298.7 m). The
maximum length of the system cable in each loop should be less than 200 ft.
(61 m).
• Increases the overall quality of the ClassWork Plus system.
Figure 2-1. ClassWork Plus Multiloop front view.
Figure 2-2. ClassWork Plus Multiloop rear view.
8
CAT5 CLASSWORK PLUS MULTILOOP
3. Installation
3.1 Configuration
Figure 3-1 illustrates the Multiloop configuration.
Figure 3-1. ClassWork Plus Multiloop configuration.
Student 1
Student
12
Student
13
Student
14
Student
15
Student
16
Student
24
Student
25
Student
26
Student
27
Student
28
Student
29
Student
37
Student
38
Student
39
Student
40
Student
41
Student
42
Student
50
Student
51
Student
52
Student
53
Student
54
Student
55
Student
63
Student 2
Student 3
Student 4
Student 11
IN
OUT
OUT
OUT OUTOUT
IN
IN
IN IN
Instructor
9
CHAPTER 3: Installation
3.2 Installation Steps
Before connecting the ClassWork Plus Multiloop, set up the classroom layout by
evenly dividing the Student stations between all five loops. The Teacher Unit must
always be in Loop 1. The maximum number of ClassWork Plus Multiloop units in
each loop should be no more than 16.
1. Place the CAT5 ClassWork Plus Multiloop away from fluorescent lights, strong
magnetic and electromagnetic fields, and all other sources of electrical noise.
2. Connect the 9-VAC power adapter to the power connector on the ClassWork
Plus Multiloop’s front panel and plug the cord into a wall socket.
3. Connect the loops using standard CAT5 FTP system cable as follows:
a. Connect the OUT port of Loop 1 of the Multiloop to the IN port of the
first ClassWork Plus unit.
b. Connect the OUT port of the last ClassWork Plus unit in the loop to the
IN port of Loop 1 of the Multiloop. For best performance, connect the
Teacher Unit as the last station in Loop 1.
c. Connect the other loops to the rest of the ClassWork Plus units, as
described above.
4. Set the Student Units’ ID numbers according to your classroom layout. To set
the ID numbers, see the CAT5 ClassWork Plus manual (AC840A-R2).
10
CAT5 CLASSWORK PLUS MULTILOOP
3.3 Mapping the Classroom Layout Using the ClassWork Plus Multiloop
Map the classroom layout before operating the ClassWork Plus system. To map the
classroom layout:
1. Switch on all computers and ClassWork Plus units.
2. Press the following key sequence on the Teacher Control Unit (TCU):
<PRINT><MASTR><ENTER><PRINT><PRINT><5><5><ENTER>
During the mapping, all five green LEDs on the ClassWork Plus Multiloop’s
rear panel will light. Once the mapping finishes, it is saved in the memory,
and all the green LEDs darken.
3. Wait for 30 seconds, then press the <PRINT> key. The ClassWork Plus system
will now operate.
NOTE
Each time you switch the ClassWork Plus Multiloop, press the Reset
button located on the rear panel of the TCU.
When a ClassWork Plus command is sent to a loop, the green LEDs
near the RJ-45 connectors of that loop light.
REMINDER
Always perform the classroom mapping procedure every time you
change the classroom setup.
1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax 724-746-0746
© Copyright 2001. Black Box Corporation. All rights reserved.
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