Black Box MC170A User manual

MAY 1999
MC170A
MC171A
MC172A
MC173A
LAN-Safe Firewall
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]

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LAN-SAFE FIREWALL
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 classe A prescrites dans le Règlement sur le
brouillage radioélectrique publié par Industrie Canada.

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LAN-SAFE FIREWALL
FCC REQUIREMENTS FOR
TELEPHONE-LINE EQUIPMENT
1. The Federal Communications Commission (FCC)
has established rules which permit this device to
be directly connected to the telephone network
with standardized jacks. This equipment should
not be used on party lines or coin lines.
2. If this device is malfunctioning, it may also be
causing harm to the telephone network; this
device should be disconnected until the source
of the problem can be determined and until the
repair has been made. If this is not done, the
telephone company may temporarily disconnect
service.
3. If you have problems with your telephone equip-
ment after installing this device, disconnect this
device from the line to see if it is causing the
problem If it is, contact Black Box or an
authorized agent.
4. The telephone company may make changes in its
technical operations and procedures. If any such
changes affect the compatibility or use of this
device, the telephone company is required to
give adequate notice of the changes.

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LAN-SAFE FIREWALL
5. If the telephone company requests information
on what equipment is connected to their lines,
inform them of:
a. The telephone number that this unit is
connected to.
b. The ringer equivalence number.
c. The USOC jack required: RJ-11C.
d. The FCC registration number.
Items (b) and (d) can be found on the unit’s
FCC label. The ringer equivalence number (REN)
is used to determine how many devices can be
connected to your telephone line. In most areas,
the sum of the RENs of all devices on any one line
should not exceed five (5.0). If too many devices
are attached, they may not ring properly.
6. In the event of an equipment malfunction, all
repairs should be performed by Black Box or an
authorized agent. It is the responsibility of users
requiring service to report the need for service
to the supplier or to an authorized agent.

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LAN-SAFE FIREWALL
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.

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LAN-SAFE FIREWALL
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.
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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LAN-SAFE FIREWALL
TRADEMARKS
The trademarks mentioned in this manual are the sole property
of their owners.
CONTENTS
1. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2. Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1 Description. . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2 Available Models . . . . . . . . . . . . . . . . . . . . . 8
2.3 Slide Switch . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.4 LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3. Installing the Hardware . . . . . . . . . . . . . . . . . . 10
3.1 Standalone Models . . . . . . . . . . . . . . . . . . . 10
3.1.1 LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1.2 Connectors . . . . . . . . . . . . . . . . . . . . . . 10
3.1.3 Installation. . . . . . . . . . . . . . . . . . . . . . . 10
3.2 Wallplate Models . . . . . . . . . . . . . . . . . . . . . 11
4. Installing the Software (for MC172A and
MC173A only) . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.1 Windows 3.x . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.2 Windows 95/98 . . . . . . . . . . . . . . . . . . . . . . 15
5. Configuring the Software . . . . . . . . . . . . . . . . . 16

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LAN-SAFE FIREWALL
1. Specifications
Connectors — Standalone units (MC170A,
MC172A): (2) RJ-11, NIC: (2) RJ-45;
Wallplate units (MC171A, MC173A);
Modem: (1) RJ-11, NIC: (1) RJ-45
Indicators — (1) Modem
Size — 3"H x 1.7"W x 0.8"D (7.6 x 4.3 x 2 cm)
Weight — 0.5 lb. (0.2 kg)

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LAN-SAFE FIREWALL
2. Introduction
2.1 Description
The LAN-Safe Firewall is a security device that’s designed
for PC clients or servers that have both modem and LAN
connections. When the modem and LAN connections
are made through the Firewall, the possibility that dial
modem connection will also allow access to the LAN is
eliminated. It does this by simply opening (disconnecting)
the LAN connection when the modem is in use.
2.2 Available Models
Four models are available: two that mount to a wallplate
and two standalone.
• On the LAN-Safe Firewall, Standalone (MC170A)
or LAN-Safe Firewall, Wallplate (MC171A), the
LAN connection is automatically re-established
when the modem call is completed.
• On the LAN-Safe Firewall, Enhanced Standalone
(MC172A) or LAN-Safe Firewall, Enhanced
Wallplate (MC173A), you must run a user-defined
software program, such as a virus scan or audit
program, before the LAN connection will be
re-established.

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LAN-SAFE FIREWALL
2.3 Slide Switch
The MC172A and MC173A models can also function the
same as the MC170A and MC171A models. Simply slide
the slide switch to the inside of the PC board. Sliding
toward the outside of the board selects the Enhanced
functions. The MC170A and MC171A models do not
have a slide switch.
2.4 LEDs
The unit has one LED that indicates modem activity
and LAN disconnect.

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LAN-SAFE FIREWALL
3. Installing the Hardware
Follow these steps to install the LAN-Safe Firewall.
3.1 Standalone Models
3.1.1 LED
The Standalone models have one LED that indicates
modem activity and LAN disconnect.
3.1.2 C ONNECTORS
The Standalone models have two RJ-11 connectors that
connect the telephone line to the analog side of the
modem and two RJ-45 connectors that connect the
NIC in the PC client or server to the LAN.
3.1.3 I NSTALLATION
1. Connect the two foot RJ-11 cable to the port
labeled MODEM.
NOTE
If you’re using the MC172A, place it between the modem
and the Firewall. Be sure to use the cable supplied or use
any 4- or 6-conductor cable to connect it to the modem port
on the Firewall.

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LAN-SAFE FIREWALL
2. Connect the telephone line to the port labeled
TELCO.
3. Connect the two foot LAN cable to the RJ-45 port
labeled NIC. Connect the other end to the NIC
card of the device that will be disconnected from
the LAN during a modem call.
4. Connect the cable from the 10BASE-T hub to the
port labeled LAN.
5. Place a modem call. The LED should turn on.
This indicates that the secure device has been
disconnected from the LAN. If the LED does
not come on, check the cable connections.
6. Hang up the modem and wait for the LAN
connection to re-establish itself.
3.2 Wallplate Models
1. Punch down the horizontal LAN cable to the rear
of the Firewall. The color codes on the 4-pair 110
connector provide for standard 568B type
connections.

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LAN-SAFE FIREWALL
2. Punch down the telephone line cable to the 2-pair
110 connector. The middle two terminals are Tip
and Ring.
3. Connect a standard LAN jumper cable from
the NIC in the PC to the 8-pin RJ-45 connector,
labeled “Computer.”
4. Connect the telco line cable from the modem
to the 6-pin RJ-11 connector.
5. Slide the switch to the inside of the PC board
and place a modem call. The LED should turn
on. This indicates that the secure device has
been disconnected from the LAN. Check it.
If the LED does not come on, check the
modem cable connections.
6. Hang up the modem and wait for the LAN
connection to re-establish itself.
7. To use the Enhanced model functions of the
MC172A or MC173A, slide the switch to the
outside of the PC board and install the software
as described in Chapter 4.

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LAN-SAFE FIREWALL
4. Installing the Software (for
MC172A and MC173A only)
Be sure that you have DOS, Windows 3.1x, or Windows
95/98. Most of the files on the two diskettes should
already be resident on the machine. You might need
to transfer only a few files.
Follow the instructions on the screen to name the
program you wish to execute before re-establishing
the LAN connection. After installation, keep the disks
secure to prevent unauthorized users from reloading
the software to bypass the Firewall.

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LAN-SAFE FIREWALL
4.1 Windows 3.x
Follow these steps if you’re using Windows 3.x.
1. Insert disk 1 into drive A (or B).
2. Select “File” from the Program Manager.
3. Select “Run.”
4. Type in the Command Line:
“A:\SETUP.EXE” or “B:\SETUP.EXE”
and select “OK.”
5. When asked, place disk 2 into drive A (or B)
and select “OK.”
6. Follow the rest of the instructions given
by the Setup program.
7. Once the program has finished installing,
open the LanSafe Program Group.
8. Double click the LanSafe Config.
9. Go to Chapter 5.

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LAN-SAFE FIREWALL
4.2 Windows 95/98
1. Insert disk 1 into drive A (or B).
2. Select “Start” from the Taskbar.
3. Select “Run.”
4. In the space provided, type in “A:\SETUP.EXE”
(or “B:\SETUP.EXE”) and select “OK.”
5. When asked, place disk 2 into drive A (or B)
and select “OK.”
6. Follow the rest of the instructions provided
by the Setup program.
7. After the program has completed its installation,
select “Start” on the Taskbar.
8. Select “Programs” and then “LanSafe.”
9. Click the LanSafe Config.
10. Go to Chapter 5.

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LAN-SAFE FIREWALL
5. Configuring the Software
Once the software’s installed for your MC172A or
MC173A, follow these steps to configure the software.
1. You will be asked for a login and password. The
default settings of these are “user” for the login
and “word” for the password.
2. Once you have properly entered the login and
password, the LanSafe Setup screen appears. It
consists of several settings.
a. Change File—This is the file that you select for the
LanSafe program to operate before reconnecting
the Firewall to the LAN. If no file is selected, the
program will just reconnect the Firewall.
b. Change ComPort—This is the comport that is
connected to the modem and Firewall.
c. Change Login—This allows you to change the
login.

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LAN-SAFE FIREWALL
d. Change Password—This allows you to change the
password. If you select this, you will be asked to
enter the new password twice. If you enter the
password incorrectly the second time, the
password will not be changed. The password
will always be shown as a group of asterisks (*).
e. Run LanSafe—This will run the Reconnect
program to test the comport, modem, and
Firewall connections.
f. Default—This resets the Firewall to the default
settings.
3. Once the settings are correct, select Exit. This
will save the configuration in an encrypted file
(LanSafe.cfg) in the LanSafe directory.
NOTE
If the configuration file becomes corrupted or the you forget
the login or password, erase the configuration file
(LanSafe.cfg). This will cause the LanSafe Config to use
the default settings.
4. To reconnect the Firewall, run the LanSafe
program.

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