Black Box Multi Quick Check RJ-11 User manual

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SUPPORT
INFORMATION
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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]
APRIL 1999
TL159A
TL159AE
RJ-11 Data Broadcast Unit
DB-8
COMP CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8 PWR

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RJ-11 DATA BROADCAST UNIT
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.

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RJ-11 DATA BROADCAST UNIT
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.

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RJ-11 DATA BROADCAST UNIT
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 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.

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RJ-11 DATA BROADCAST UNIT
TRADEMARKS
The trademarks mentioned in this manual are the sole property of their owners.

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RJ-11 DATA BROADCAST UNIT
CONTENTS
1. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2 What the Package Includes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.1 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.2 Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5. Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Appendix: Typical Pinning for General Applications. . . . . . . . . . . . . . . . . . . . . . . 13

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RJ-11 DATA BROADCAST UNIT
1. Specifications
Enclosure — High-impact plastic
Flow Control — Software only, transparent to speed and data
Protocol — Asynchronous
Speed — Transparent
MTBF — 350,000 hours
User Channels — 8
Interface — RS-232/V.24, composite port configured as DCE,
slave ports configured as DTE
Indicators — (10) red LEDs: Power on/off,
Channels 1 through 8 active, and COMP active
Connectors — (9) RJ-11
Power — TL159A: 115-VAC, 60 Hz at 50 mA;
TL159AE: 230-VAC, 50 Hz at 25 mA
Power Consumption — 6 watts total
Size — 1.5"H x 5.5"W x 8.5"D (3.8 x 14 x 21.6 cm)
Weight — 2.4 lb. (1.1 kg)

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RJ-11 DATA BROADCAST UNIT
2. Introduction
2.1 Description
The RJ-11 Data Broadcast Unit receives an asynchronous signal from a master
device and redistributes it to up to eight slave devices. You can use it, for example,
to distribute a signal from a computer to eight different terminals. The unit takes
the signal appearing at the composite connector (COMP), regenerates it, and
distributes it to eight slave connectors (CH1–8).
2.2 What the Package Includes
Your package should include the following items:
• RJ-11 Data Broadcast Unit
• Wallmount power transformer: 115-VAC for TL159A, 230-VAC for TL159AE
• This user’s manual

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RJ-11 DATA BROADCAST UNIT
3. Installation
Follow the steps listed below to install the RJ-11 Data Broadcast Unit.
1. Remove power from the terminal or computer that you wish to connect to the
RJ-11 Data Broadcast Unit.
2. Connect the composite connector (labeled “COMP”) on the rear of the RJ-11
Data Broadcast Unit to the source of data (usually a modem, multiplexor, or
computer port). This cable must be less than 50 feet (15.2 m) long to comply
with the RS-232 interface distance limitation, unless you use extended-
distance cable. Call Black Box Technical Support at 724-746-5500 for details.
3. Connect up to eight slave devices (usually terminals or printers) to the
channel connectors of the RJ-11 Data Broadcast Unit. Each cable must be less
than 50 feet (15.2 m) long to comply with the RS-232 interface distance
standard, unless you use extended-distance cable.
4. Plug the wallmount transformer into a wall socket. The red power (PWR)
LED should be ON.
5. Apply power to the master and slave devices.
6. The RJ-11 Data Broadcast Unit is now ready for operation.

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RJ-11 DATA BROADCAST UNIT
4. Operation
4.1 Pinning
The RJ-11 Data Broadcast Unit supports three leads on each port connector:
Transmit Data (TXD), Receive Data (RXD), and Signal Ground (SG) (see Tables
4-1 and 4-2). The Unit regenerates the TXD input that comes in on the composite
(COMP) port and simultaneously sends it out on the TXD lead of each of the eight
slave ports, channels 1 through 8. The Unit also regenerates the RXD input that
comes in on each of the slave ports, and assembles it to produce the RXD signal
that is transmitted from the composite port. The signal grounds for all of the ports
are tied together.
Each of the nine ports on the rear panel of the Data Broadcast Unit has a four-
conductor modular RJ-11 connector. Viewed from the rear, the left conductor is
TXD, the center two conductors are signal grounds, and the right conductor is
RXD.
Figure 4-1. RJ-11 Connector.
Table 4-1. Composite “COMP” Connector (DCE) Pinning.
Pin Signal Function
2 TXD Data In
3 and 4 SG Signal Ground
5 RXD Data Out
1
1

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RJ-11 DATA BROADCAST UNIT
Table 4-2. Channel Connectors CH1 through CH8 (DTE) Pinning.
Pin Signal Function
2 TXD Data Out
3 and 4 SG Signal Ground
5 RXD Data In
4.2 Indicators
The front-panel LEDs on the Data Broadcast Unit indicate the following:
• The PWR LED lights red when the primary power is ON.
• The COMP LED indicates the state of the composite TXD signal. This LED
lights whenever a “SPACE” is detected.
• The CH1 through CH8 LEDs indicate the state of each slave port’s RXD
signal. These LEDs light whenever a “SPACE” is detected on its respective port.
Figure 4-2 illustrates the front panel of the RJ-11 Data Broadcast Unit.
Figure 4-2. Position of the recessed LEDs on the front panel.
DB-8
COMP CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8 PWR

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RJ-11 DATA BROADCAST UNIT
5. Troubleshooting
The most effective way to troubleshoot a system using the RJ-11 Data Broadcast
Unit is to bypass the Unit completely and connect one of the slave devices
(such as a terminal) directly to the source equipment (computer port, modem, or
concentrator). If the problem is corrected with the RJ-11 Data Broadcast Unit out
of the circuit, inspect the unit closely for loose connections. If the unit is defective,
you need to return the unit to Black Box for repair or replacement. Call Technical
Support at 724-746-5500 for a return authorization number.
If you have a loopback connector and an asynchronous data tester, you can
check the Data Broadcast for the common problems described in Table 5-1.
Connect the data tester to the composite channel and connect the loopback
connector, in turn, to each of the slave channels. You can verify proper operation
of the Data Broadcast by typing a few characters on the keyboard of the PC and
watching them appear correctly on the CRT screen. The terminal must be in
full-duplex mode for this test. The error counter on the data tester should verify
correct operation by displaying zero errors.

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RJ-11 DATA BROADCAST UNIT
Table 5-1. Common Problems and Solutions.
Problem Cause and Solution
No indicator lights 1. Wallmount transformer is loose in the wall
socket. Plug the transformer securely into the
socket.
2. Wall outlet is unpowered. Try plugging a lamp
or some other electrical appliance into the same
outlet. If the outlet is not working, use a different
outlet and have the bad outlet repaired.
3. Data Broadcast unit is defective. Call Black
Box, then return the unit to Black Box for repair
or replacement.
No composite-channel data light 1. Data source is not functioning. Repair or
(COMP) and no data received replace it.
by slave devices
2. Cable is not connected.
3. Data Broadcast unit is defective. Call Black
Box, then return the unit to Black Box for repair
or replacement.
Composite-channel data light 1. Slave devices are not plugged in or not
(COMP) “ON,” but no data powered on.
received by slave devices
2. Data cables are not connected.
3. Data Broadcast unit is defective. Call Black
Box, then return the unit to Black Box for repair
or replacement.

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RJ-11 DATA BROADCAST UNIT
Appendix: Typical Pinning for
General Applications
There is no “standard” interface for serial data on an RJ-11 connector. For this
reason, many of the devices that you can connect to the RJ-11 Data Broadcast Unit
may require changing the pinning in order to function correctly. Included below
are examples of typical pinning on some devices.
A.1 Slave Channels 1 through 8
RJ-11 DB25
23
3
7
4
52
Figure A-1. Connecting a terminal, serial printer, or CPU communications
port to a slave channel.
RJ-11 DB25
22
3
7
4
53
Figure A-2. Connecting a modem or a multiplexor channel port to a slave
channel.

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RJ-11 DATA BROADCAST UNIT
A.2 Composite “COMP” Port
RJ-11 DB25
22
3
7
4
53
Figure A-3. Connecting a terminal, serial printer, or CPU communications
port to the composite port.
RJ-11 DB25
23
3
7
4
52
Figure A-4. Connecting a modem or a multiplex
or channel port to the composite port.

1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax [phone]
© Copyright 1999. Black Box Corporation. All rights reserved.