RAD Data comm MBE10-1, MBE10-1D, MBE10-8, MBE10-8D User Manual

M

Installation and Operation Manual

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BE Family (LAN RANger

Series)

Ethernet Remote Access Routers
(MBE10-1, MBE10-8, MBE10-1D,
MBE10-8D)

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MBE Family (LAN RANger Series)

Ethernet Remote Access Routers (MBE10-1, MBE10-8,

MBE10-1D, MBE10-8D)

Version 7

Installation and Operation Manual

Notice

This manual contains information that is proprietary to RAD Data Communications Ltd. ("RAD"). No
part of this publication may be reproduced in any form whatsoever without prior written approval by
RAD Data Communications.

Right, title and interest, all information, copyrights, patents, know-how, trade secrets and other
intellectual property or other proprietary rights relating to this manual and to the MBE Family (LAN
RANger Series) and any software components contained therein are proprietary products of RAD
protected under international copyright law and shall be and remain solely with RAD.

MBE Family (LAN RANger Series) is a registered trademark of RAD. No right, license, or interest to such
trademark is granted hereunder, and you agree that no such right, license, or interest shall be asserted
by you with respect to such trademark.

You shall not copy, reverse compile or reverse assemble all or any portion of the Manual or the MBE
Family (LAN RANger Series). You are prohibited from, and shall not, directly or indirectly, develop,
market, distribute, license, or sell any product that supports substantially similar functionality as the
MBE Family (LAN RANger Series), based on or derived in any way from the MBE Family (LAN RANger
Series). Your undertaking in this paragraph shall survive the termination of this Agreement.

This Agreement is effective upon your opening of the MBE Family (LAN RANger Series) package and
shall continue until terminated. RAD may terminate this Agreement upon the breach by you of any
term hereof. Upon such termination by RAD, you agree to return to RAD the MBE Family (LAN
RANger Series) and all copies and portions thereof.

For further information contact RAD at the address below or contact your local distributor.

International Headquarters
RAD Data Communications Ltd.

24 Raoul Wallenberg St.
Tel Aviv 69719 Israel
Tel: [phone]
Fax: [phone]
E-mail: [e-mail]

© 1994-2003 RAD Data Communications Ltd. Publication No. 572-200-02/03

U.S. Headquarters
RAD Data Communications Inc.

900 Corporate Drive
Mahwah, NJ 07430 USA
Tel: [phone], Toll free: 1-800-444-7234
Fax: [phone]
E-mail: [e-mail]

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Limited Warranty

RAD warrants to DISTRIBUTOR that the hardware in the MBE Family (LAN RANger Series) to be
delivered hereunder shall be free of defects in material and workmanship under normal use and
service for a period of twelve (12) months following the date of shipment to DISTRIBUTOR.

If, during the warranty period, any component part of the equipment becomes defective by reason of
material or workmanship, and DISTRIBUTOR immediately notifies RAD of such defect, RAD shall have
the option to choose the appropriate corrective action: a) supply a replacement part, or b) request
return of equipment to its plant for repair, or c) perform necessary repair at the equipment's location.
In the event that RAD requests the return of equipment, each party shall pay one-way shipping costs.

RAD shall be released from all obligations under its warranty in the event that the equipment has been
subjected to misuse, neglect, accident or improper installation, or if repairs or modifications were
made by persons other than RAD's own authorized service personnel, unless such repairs by others
were made with the written consent of RAD.

The above warranty is in lieu of all other warranties, expressed or implied. There are no warranties
which extend beyond the face hereof, including, but not limited to, warranties of merchantability and
fitness for a particular purpose, and in no event shall RAD be liable for consequential damages.

RAD shall not be liable to any person for any special or indirect damages, including, but not limited to,
lost profits from any cause whatsoever arising from or in any way connected with the manufacture,
sale, handling, repair, maintenance or use of the MBE Family (LAN RANger Series), and in no event
shall RAD's liability exceed the purchase price of the MBE Family (LAN RANger Series).

DISTRIBUTOR shall be responsible to its customers for any and all warranties which it makes relating
to MBE Family (LAN RANger Series) and for ensuring that replacements and other adjustments required
in connection with the said warranties are satisfactory.

Software components in the MBE Family (LAN RANger Series) are provided "as is" and without warranty
of any kind. RAD disclaims all warranties including the implied warranties of merchantability and
fitness for a particular purpose. RAD shall not be liable for any loss of use, interruption of business or
indirect, special, incidental or consequential damages of any kind. In spite of the above RAD shall do
its best to provide error-free software products and shall offer free Software updates during the
warranty period under this Agreement.

RAD's cumulative liability to you or any other party for any loss or damages resulting from any claims,
demands, or actions arising out of or relating to this Agreement and the MBE Family (LAN RANger Series)
shall not exceed the sum paid to RAD for the purchase of the MBE Family (LAN RANger Series). In no
event shall RAD be liable for any indirect, incidental, consequential, special, or exemplary damages or
lost profits, even if RAD has been advised of the possibility of such damages.

This Agreement shall be construed and governed in accordance with the laws of the State of Israel.

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General Safety Instructions

The following instructions serve as a general guide for the safe installation and operation of
telecommunications products. Additional instructions, if applicable, are included inside the manual.

Safety Symbols

This symbol may appear on the equipment or in the text. It indicates
potential safety hazards regarding product operation or maintenance to
operator or service personnel.

Warning

Danger of electric shock! Avoid any contact with the marked surface while
the product is energized or connected to outdoor telecommunication lines.

.

Warning

Protective earth: the marked lug or terminal should be connected to the building
protective earth bus.

Some products may be equipped with a laser diode. In such cases, a label
with the laser class and other warnings as applicable will be attached near
the optical transmitter. The laser warning symbol may be also attached.
Please observe the following precautions:

• Before turning on the equipment, make sure that the fiber optic cable is
intact and is connected to the transmitter.

• Do not attempt to adjust the laser drive current.

• Do not use broken or unterminated fiber-optic cables/connectors or look

straight at the laser beam.

• The use of optical devices with the equipment will increase eye hazard.

• Use of controls, adjustments or performing procedures other than those

specified herein, may result in hazardous radiation exposure.

ATTENTION: The laser beam may be invisible!

Always observe standard safety precautions during installation, operation and maintenance of this
product. Only qualified and authorized service personnel should carry out adjustment, maintenance or
repairs to this product. No installation, adjustment, maintenance or repairs should be performed by
either the operator or the user.

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Handling Energized Products

General Safety Practices

Do not touch or tamper with the power supply when the power cord is connected. Line voltages may
be present inside certain products even when the power switch (if installed) is in the OFF position or a
fuse is blown. For DC-powered products, although the voltages levels are usually not hazardous,
energy hazards may still exist.

Before working on equipment connected to power lines or telecommunication lines, remove jewelry
or any other metallic object that may come into contact with energized parts.

Unless otherwise specified, all products are intended to be grounded during normal use. Grounding is
provided by connecting the mains plug to a wall socket with a protective earth terminal. If an earth lug
is provided on the product, it should be connected to the protective earth at all times, by a wire with a
diameter of 18 AWG or wider. Rack-mounted equipment should be mounted only in earthed racks
and cabinets.

Always make the ground connection first and disconnect it last. Do not connect telecommunication
cables to ungrounded equipment. Make sure that all other cables are disconnected before
disconnecting the ground.

Connection of AC Mains

Make sure that the electrical installation complies with local codes.

Always connect the AC plug to a wall socket with a protective ground.

The maximum permissible current capability of the branch distribution circuit that supplies power to
the product is 16A. The circuit breaker in the building installation should have high breaking capacity
and must operate at short-circuit current exceeding 35A.

Always connect the power cord first to the equipment and then to the wall socket. If a power switch is
provided in the equipment, set it to the OFF position. If the power cord cannot be readily
disconnected in case of emergency, make sure that a readily accessible circuit breaker or emergency
switch is installed in the building installation.

Connection of DC Mains

Unless otherwise specified in the manual, the DC input to the equipment is floating in reference to the
ground. Any single pole can be externally grounded.

Due to the high current capability of DC mains systems, care should be taken when connecting the DC
supply to avoid short-circuits and fire hazards.

DC units should be installed in a restricted access area, i.e. an area where access is authorized only to
qualified service and maintenance personnel.

Make sure that the DC supply is electrically isolated from any AC source and that the installation
complies with the local codes.

The maximum permissible current capability of the branch distribution circuit that supplies power to
the product is 16A. The circuit breaker in the building installation should have high breaking capacity
and must operate at short-circuit current exceeding 35A.

Before connecting the DC supply wires, ensure that power is removed form the DC circuit. Locate the
circuit breaker of the panel board that services the equipment and switch it to the OFF position. When
connecting the DC supply wires, first connect the ground wire to the corresponding terminal, then the
positive pole and last the negative pole. Switch the circuit breaker back to the ON position.

A readily accessible disconnect device that is suitably rated and approved should be incorporated in
the building installation.

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Connection of Data and Telecommunications Cables

Data and telecommunication interfaces are classified according to their safety status.

The following table lists the status of several standard interfaces. If the status of a given port differs from
the standard one, a notice will be given in the manual.

Ports Safety Status

V.11, V.28, V.35, V.36, RS-530,
X.21, 10 BaseT, 100 BaseT,
Unbalanced E1, E2, E3, STM, DS-2,
DS-3, S-Interface ISDN, Analog voice

SELV Safety Extra Low Voltage:

Ports which do not present a safety hazard. Usually
up to 30 VAC or 60 VDC.

E&M

xDSL (without feeding voltage),
Balanced E1, T1, Sub E1/T1

TNV-1 Telecommunication Network Voltage-1:

Ports whose normal operating voltage is within the
limits of SELV, on which overvoltages from
telecommunications networks are possible.

FXS (Foreign Exchange Subscriber) TNV-2 Telecommunication Network Voltage-2:

Ports whose normal operating voltage exceeds the
limits of SELV (usually up to 120 VDC or telephone
ringing voltages), on which overvoltages from
telecommunication networks are not possible. These
ports are not permitted to be directly connected to
external telephone and data lines.

FXO (Foreign Exchange Office), xDSL
(with feeding voltage), U-Interface
ISDN

TNV-3 Telecommunication Network Voltage-3:

Ports whose normal operating voltage exceeds the
limits of SELV (usually up to 120 VDC or telephone
ringing voltages), on which overvoltages from
telecommunication networks are possible.

Always connect a given port to a port of the same safety status. If in doubt, seek the assistance of a
qualified safety engineer.

Always make sure that the equipment is grounded before connecting telecommunication cables. Do
not disconnect the ground connection before disconnecting all telecommunications cables.

Some SELV and non-SELV circuits use the same connectors. Use caution when connecting cables.
Extra caution should be exercised during thunderstorms.

When using shielded or coaxial cables, verify that there is a good ground connection at both ends. The
earthing and bonding of the ground connections should comply with the local codes.

The telecommunication wiring in the building may be damaged or present a fire hazard in case of
contact between exposed external wires and the AC power lines. In order to reduce the risk, there are
restrictions on the diameter of wires in the telecom cables, between the equipment and the mating
connectors.

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Caution

To reduce the risk of fire, use only No. 26 AWG or larger telecommunication line cords.

Attention

Pour réduire les risques s’incendie, utiliser seulement des conducteurs de
télécommunications 26 AWG ou de section supérieure.

Some ports are suitable for connection to intra-building or non-exposed wiring or cabling only. In such
cases, a notice will be given in the installation instructions.

Do not attempt to tamper with any carrier-provided equipment or connection hardware.

Electromagnetic Compatibility (EMC)

The equipment is designed and approved to comply with the electromagnetic regulations of major
regulatory bodies. The following instructions may enhance the performance of the equipment and will
provide better protection against excessive emission and better immunity against disturbances.

A good earth connection is essential. When installing the equipment in a rack, make sure to remove all
traces of paint from the mounting points. Use suitable lock-washers and torque. If an external
grounding lug is provided, connect it to the earth bus using braided wire as short as possible.

The equipment is designed to comply with EMC requirements when connecting it with unshielded
twisted pair (UTP) cables. However, the use of shielded wires is always recommended, especially for
high-rate data. In some cases, when unshielded wires are used, ferrite cores should be installed on
certain cables. In such cases, special instructions are provided in the manual.

Disconnect all wires which are not in permanent use, such as cables used for one-time configuration.

The compliance of the equipment with the regulations for conducted emission on the data lines is
dependent on the cable quality. The emission is tested for UTP with 80 dB longitudinal conversion loss
(LCL).

Unless otherwise specified or described in the manual, TNV-1 and TNV-3 ports provide secondary
protection against surges on the data lines. Primary protectors should be provided in the building
installation.

The equipment is designed to provide adequate protection against electro-static discharge (ESD).
However, it is good working practice to use caution when connecting cables terminated with plastic
connectors (without a grounded metal hood, such as flat cables) to sensitive data lines. Before
connecting such cables, discharge yourself by touching earth ground or wear an ESD preventive wrist
strap.

FCC-15 User Information

This equipment has been tested and found to comply with the limits of the Class A digital device,
pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection
against harmful interference when the equipment is operated in a commercial environment. This
equipment generates, uses and can radiate radio frequency energy and, if not installed and used in
accordance with the Installation and Operation manual, may cause harmful interference to the radio
communications. Operation of this equipment in a residential area is likely to cause harmful
interference in which case the user will be required to correct the interference at his own expense.

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Canadian Emission Requirements

This Class A digital apparatus meets all the requirements of the Canadian Interference-Causing
Equipment Regulation.

Cet appareil numérique de la classe A respecte toutes les exigences du Règlement sur le matériel
brouilleur du Canada.

Warning per EN 55022 (CISPR-22)

Warning

Avertissement

Achtung

This is a class A product. In a domestic environment, this product may cause
radio interference, in which case the user will be required to take adequate
measures.

Cet appareil est un appareil de Classe A. Dans un environnement résidentiel, cet
appareil peut provoquer des brouillages radioélectriques. Dans ces cas, il peut
être demandé à l’utilisateur de prendre les mesures appropriées.

Dieses ist ein Gerät der Funkstörgrenzwertklasse A. In Wohnbereichen können
bei Betrieb dieses Gerätes Rundfunkströrungen auftreten, in welchen Fällen der
Benutzer für entsprechende Gegenmaßnahmen verantwortlich ist.

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Declaration of Conformity

Manufacturer's Name: RAD Data Communications Ltd.

Manufacturer's Address: 24 Raoul Wallenberg St.

Tel Aviv 69719

Israel

declares that the product:

Product Name: MBE10-1, MBE10-8, MBE10-1D, MBE10-8D

conforms to the following standard(s) or other normative document(s):

EMC: EN 55022 (1994) Limits and methods of measurement of radio disturbance

characteristics of information technology equipment.

EN 50082-1 (1992) Electromagnetic compatibility - Generic immunity standards

for residential, commercial and light industry.

Safety: EN 60950 (1992/93) Safety of information technology equipment, including

electrical business equipment.

Supplementary Information:

The product herewith complies with the requirements of the EMC Directive 89/336/EEC and the Low
Voltage Directive 73/23/EEC. The product was tested in a typical configuration.

Tel Aviv, September 18

Haim Karshen
VP Quality

European Contact: RAD Data Communications GmbH, Otto-Hahn-Str. 28-30, 85521
Ottobrunn-Riemerling, Germany

th

, 1996

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Conventions

Note

Caution

Warning

A note draws attention to a general rule for a procedure, or to exceptions to a rule.

A caution warns of possible damage to the equipment if a procedure is not
followed correctly.

A warning alerts to the presence of important operating and maintenance
(servicing) instructions in the literature accompanying the equipment. If these
instructions are not followed exactly, possible bodily injury may occur.

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Contents

Chapter 1. Introduction

1.1 Overview..................................................................................................................... 1-1

General ................................................................................................................................1-1

Versions................................................................................................................................ 1-1

Applications.......................................................................................................................... 1-2

Features................................................................................................................................ 1-2

1.2 Physical Description..................................................................................................... 1-4

1.3 Functional Description................................................................................................. 1-5

General ................................................................................................................................1-5

Principles of Operation .........................................................................................................1-6

Functional Block Diagram..................................................................................................... 1-7

Management ........................................................................................................................1-9

1.4 Technical Specifications............................................................................................. 1-10

Chapter 2. Installation

2.1 Introduction................................................................................................................. 2-1

2.2 Site Requirements and Prerequisites ............................................................................ 2-1

2.3 Package Contents ........................................................................................................2-2

2.4 Equipment Needed ..................................................................................................... 2-2

2.5 Installation and Setup .................................................................................................. 2-2

Configuring MBE...................................................................................................................2-3

Connecting the Interfaces .....................................................................................................2-7

Connecting the Line..............................................................................................................2-8

Connecting the LAN .............................................................................................................2-8

Connecting the Power ..........................................................................................................2-9

Chapter 3. Operation

3.1 Front Panel Controls and Indicators ............................................................................. 3-1

3.2 Operating Instructions ................................................................................................. 3-2

Initial Setup ..........................................................................................................................3-2

Power-on .............................................................................................................................3-3

Operating MBE..................................................................................................................... 3-3

Power-off .............................................................................................................................3-3

Chapter 4. Troubleshooting and Diagnostics

4.1 Diagnostic Test ............................................................................................................ 4-1

Ping Terminal .......................................................................................................................4-1

4.2 Alarms and Troubleshooting ........................................................................................ 4-1

Debugging Messages.............................................................................................................4-2

Appendix A. Pin Assignment

MBE Family Installation and Operation Manual i

Table of Contents

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List of Figures

1-1. MBE Product 3-D View ......................................................................................................... 1-4

1-2. MBE16-8 Filtering and Forwarding in Bridge Mode ............................................................... 1-5

1-3. MBE Functional Block Diagram ............................................................................................. 1-8

2-1. MBE PCB Layout ................................................................................................................... 2-4

2-2. 4W Date Rate Selection ........................................................................................................ 2-6

2-3. Link Interface Card................................................................................................................ 2-7

2-4. LAN Interface Module (UTP) ................................................................................................. 2-7

2-5. MBE Rear Panel, V.35 Connector .......................................................................................... 2-8

2-6. MBE Rear Panel, V.24 Connector .......................................................................................... 2-8

3-1. MBE Front Panel ................................................................................................................... 3-1

List of Tables

1-1. Bridge Mode Product Intercompatibility ................................................................................ 1-6

2-1. MBE Switches and Jumpers ................................................................................................... 2-5

2-2. MBE Four-Wire Data Rate ..................................................................................................... 2-6

3-1. Front Panel Controls and Indicators ....................................................................................... 3-1

4-1. Troubleshooting Guide.......................................................................................................... 4-2

ii MBE Family Installation and Operation Manual

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Chapter 1 Introduction

This chapter:

• Provides a general overview of versions of MBE units, features, and ordering
options

• Provides a physical description of MBE

• Describes the general functionality of MBE

• Lists technical specifications.

Note

This manual is supplemented by the LAN RANger Series Configuration Guide. The
term MBE refers to MBE10-1, MBE10-8, MBE10-1D, and
MBE10-8D throughout this manual.

General

Versions

1.1 Overview

The MBE family of Ethernet Remote Access Routers allows the connection of
remote LANs or single workstations to a central LAN over a wide variety of WAN
interfaces and services. Connection may be made via ISDN, Frame Relay, leased
or dialup lines.

IP routing is supported over PPP, SLIP, CSLIP or Frame Relay (RFC 1490). IPX can
be routed over PPP or Frame Relay (RFC 1490). Bridge mode is available if the
MBE family device operates opposite another MBE family device.

Four standalone models are available:

• MBE10-1 is a single WAN port router/bridge. As a bridge, it allows remote
connection of a single workstation to a central LAN. As a router, it enables
connection of a remote Ethernet LAN.

• MBE10-8 is a single WAN port router/bridge. As a bridge, it allows connection
of a remote Ethernet (consisting of up to 80 workstations) to a central Ethernet
LAN. As a router, it allows connection of a remote Ethernet LAN.

Overview 1-1

• MBE10-1D is a dual WAN port router/bridge. As a bridge, it allows connection
of two single remote workstations (one on each link) to a central LAN. As a
router, it allows connection of a remote Ethernet LAN.

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• MBE10-8D is a dual WAN-port router/bridge, As a bridge, it allows connection
of two remote Ethernet LANs, each consisting of up to 80 workstations to a
central Ethernet LAN. As a router, it allows connection of a remote Ethernet
LAN.

The MBE serial link interface options are: V.35, V.24/RS-232, V.36/RS-422, X.21,
RS-530, 4W, ISDN and CSU/DSU.

Applications

MBE can be used in a wide range of applications, employing diverse
communication links and LAN equipment. For more details on typical MBE
applications, see the LAN RANger Series Configuration Guide.

Features

Routing and Bridging Support

The MBE Family supports remote access routing and bridging for connecting
remote PCs or LANs to a central LAN over a wide variety of WAN interfaces and
services. This includes ISDN, Frame Relay, Leased Line, dial-up modems, and
DDS.

Routing and bridging are performed on a link-by-link basis. There are no bridging
or routing limitations on the central LAN. However, additional bridges should not
be connected to the remote LAN.

• Router links can operate opposite any PPP standard compliant device,
including third party routers and software-based PPP dialers, such as
Windows 95.

• Bridge links are transparent to Layer 3 protocols, such as NetBIOS and
DECNET.

A backup link may be defined, which will be automatically activated if a failure
occurs on the main link.

Management

Setup and configuration can be carried out from an ASCII terminal or PC terminal
emulator connected to the control port, from any SNMP management station,
such as RADview, or through TELNET (see the LAN RANger Series Configuration

Guide).

IP/IPX Support

Internet Protocol (IP) specifies support or MTU (Maximum Transmission Unit)
fragmentation and reassembly of packets to form datagrams. The MTU defines the
limit on fragment size transmitted on a physical network. The local terminal must
support the reassembly of IP packets in order to read the IP datagram.

1-2 Overview

MBE supports networks that have multiple IP nets on the LAN.

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The Single IP address translation feature permits a small or medium office LAN to
connect to the Internet or Intranet transparently. Single IP uses a single,
dynamically or statically allocated IP address for all users on the LAN.

• IP can be routed over PPP, SLIP, CSLIP or Frame Relay.

• IPX can be routed over either PPP or Frame Relay.

Quick Setup

The Quick Setup menu enables the adjustment of setup and link configuration
parameters while MBE is operating. For a complete description of the Quick Setup
menu, see the LAN RANger Series Configuration Guide.

Transparent Remote-to-Remote Forwarding

Transparent remote-to-remote forwarding enables direct data transfer between
two remote sites, whether or not the links are bridges or routers.

Security

Unauthorized entry to an office LAN is prevented by an Integral Solid Firewall
using session-based firewalls. When enabled, access to the LAN is restricted to only
applications enabled via the Firewall Forward Application List. In addition, access
to the MBE unit can be blocked or password-protected through TELNET or SNMP.

MBE uses PAP/CHAP security for applications that include router links. PAP/CHAP
and a scripting tool provide Internet Access authentication.

Dialback over PPP to a station using a router link at a fixed location is supported in
Microsoft operating environments (such as Windows 95). This feature adds security
by verifying the user's identity and location. It also reduces costs to mobile users.

MBE also supports Remote Dial-In User Service (RADIUS), which is a client/server
security protocol. Security information is stored in a RADIUS server. MBE
communicates with the RADIUS server to authenticate users.

WAN Economy

Connection on Demand (COD) enables links to be connected or disconnected
according to time, traffic or management. COD may be triggered based on user­defined masks.

Spoofing is used to reduce WAN link up-time and traffic by increasing the period
between RIP, SAP or IPX Keep Alive broadcasts.

Filters based on user-defined masks improve WAN utilization by ensuring that only
necessary packets are transmitted over the WAN. A special hardware filtering
technique is used to ensure high performance and easy installation.

ISDN Support

Overview 1-3

MBE supports applications operating over ISDN networks. ISDN software may be
downloaded into flash memory via TELNET or SNMP.

A bandwidth threshold may be set in order to control the amount of traffic passing
through ISDN lines. The first ISDN line operates according to the COD

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configuration. If traffic exceeds the defined threshold, the second ISDN line will be
connected.

Dual Image Flash Memory

Two different versions of software may be saved in two different partitions. At
reset, MBE automatically runs the software stored in the primary partition. New
software versions are stored in the secondary partition. If the software download is
successful, the secondary partition becomes primary, and MBE resets,
automatically running the new software version. If the download is not successful,
the previous software version will continue to run.

1.2 Physical Description

MBE is a standalone unit. Figure 1-1 shows the 3-D view of an MBE product.

1-4 Physical Description

Figure 1-1. MBE Product 3-D View

Front Panel

The front panel includes LEDs indicating operational and traffic status, a Control
interface for connection to a management terminal, and a Reset button for
resetting the device (see Chapter 3, Operation).

Rear Panel

The rear panel contains a socket for connection to a 100–240 V, 50/60 Hz power
source. It also includes LINK interfaces for connecting MBE to a communication