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E1 T1 over fiber/fiber Media Converter
MediaBand-1 - a single port manageable E1 or T1 media converter |
The MediaBand-1 delivers an E1/T1 circuit across fibre, plus provides the capability of transporting Ethernet services across the same link.
Manageable both remotely and locally and with excellent diagnostics and centralised control, the MediaBand is the choice for those wanting a professional-quality robust system which maximises the use of fibres with great visibility. |
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MediaBand is optionally Approved for direct connection to carrier leased lines and ISDN services.
The Mediaband-1 is explained in some detail below and in the PDFs downloadable opposite. New members of the family will be added to this site shortly. Please contact us if you need and assistance. |
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Features |
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MediaBand-1 transports a single
E1/T1 G.703 circuit across a wide
variety of fibre links.
The same fibre can be used to
simultaneously transport Ethernet
services. |
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Highly-accurate clocking and
clocking options |
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Remotely manageable via Ethernet
ports |
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Telecoms Approvals for direct
connection to carrier’s leased lines |
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Intuitive graphical manager – no
DIP switches! |
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Real-time Events & Alarms |
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Excellent diagnostics and link
performance statistics |
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Robust, reliable and professional
quality |
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Inter-works with other members of
the MediaBand family |
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MediaBand excels in delivering
stable, reliable and manageable
services across fibre links and benefits
from Patapsco’s excellent support. |
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Connectivity Overview |
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The MediaBand-1 interfaces to a single E1 or T1 circuit and delivers this transparently
across a fibre link.
Pairs of MediaBands are required, but different versions can be used at each end,
opening a number of interesting conversion opportunities which are covered below.
The fibre presentation is via an SFP (Small Form Pluggable) socket into which most
standard SFP modules can be inserted, providing customers with the option and
flexibility to use different light sources for different fibres over different distances.
An RJ45 Ethernet port is available for connection to a LAN, for example, for
management and Event/Alarm reporting. |
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Interfaces |
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A single E1/T1 interface (user switchable impedance matching)
RJ45 120 Ohm or 75 Ohm (user switchable) via converter cable.
Full E1/T1 G.703
SFP cage with the appropriate SFP Module interconnects to a fibre at 10/100/1GE.
A local 10/100/1GE UTP Ethernet port for management
RJ12 serial management port
MediaBand can also be controlled/managed across the fibre link through its partner’s
LAN or serial connection
IEC connector for quality internal AC PSU (DC options available)
The MedfiaBand-1 can interface with the V.35 and X.21 models, providing interface
conversion. |
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Clocking and Clock Sources |
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MediaBand can be easily configured via the GUI Manager to clock or be clocked in a
number of ways.
If no external clock is available, as in Diagram 1 below, one MediaBand can be
configured to be the clock Master and its partner will slave clock across the fibre link.
This method, as opposed to running both ends via their onboard oscillators, ensures the
clocks are always locked and there will be zero slips/hits due to clock drift. |
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MediaBand can pass a master clock source across the fibre link ensuring both ends are synchronised to a remote clock source.
Diagram 2 illustrates this scenario. |
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Diagram 3 shows an example where both customer devices have a master clock source. Each MediaBand can be configured to accept this
clock and crucially a buffer can be user-configured to handle any slight clock differences between the two sources, again ensuring there are
no data losses. |
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Ethernet Port |
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MediaBand-1 provides a 10/100/1GE Ethernet port which can be used to transport user Ethernet traffic through MediaBand and across
the fibre, as shown in diagram 5.
This Ethernet port can also be used for centralised management of a particular unit or its partner at the other end of the fibre.
This means a single fibre link can transport an E1/T1 PLUS Ethernet traffic.
Support for packets up to 1632 bytes in size (10,240 bytes Mar 09).
Rate Limiting
Depending on Ethernet and fibre speeds, it is possible for the local LAN traffic, when using MediaBand’s ability to transport Ethernet across
the fibre, to swamp the fibre link to the detriment of the E1/T1.
MediaBand has a Rate Limiting feature which can “choke” the Ethernet traffic down to a configured speed, irrespective of the speed of the
connected Ethernet, ensuring delivery of the E1/T1 circuit. |
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Approvals |
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All approvals completed in a UK Accredited
laboratory. Reports available. CE marked.
Safety and Emissions (EMC) approvals (CE
and FCC)
Telecoms approvals for connection to carrier
leased lines is optionally available for
applications similar to those in Diagram 4
MediaBand TDM-1D is RoHS compliant
without the use of “exceptions”. |
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Management |
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Overview
MediaBand can be locally or remotely configured using Patapsco’s easy-to-use high functionality DbManager GUI software.
DbLite is supplied free with each unit.
Optionally available are versions to support and give visibility of many MediaBand units, consolidating control, configuration, Events/Alarms
and diagnostics via the LAN connection. It is sophisticated but simple to use via an intuitive Graphical User Interface (GUI) and can also
generate SNMP Traps and Alarms.
The DbManager supplied with MediaBand (DbLite) allows control and visibility of a single MediaBand at any one time. A document identifying the differences between DbLite and the full versions of DBManager is available.
An option to encrypt the management traffic across the packet network is available, together with a key management/update system.
Demonstration software is available which illustrates both the DbManager and the MediaBand features. Please ask for information. |
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Configuration Changes
Configuration changes on MediaBand are made via the DbManager. All configurations can be stored on DbManager.
Installations require little or no expertise in the field as most configurations (other than setting an IP address) can be performed remotely.
Configurations are held in non-volatile memory. |
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Management Tools |
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A wide number of statistics are available for the E1/T1 circuit and Ethernet port. |
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Alarms/Events
All Alarms are reported back to the DbManager and presented in a dedicated window with descriptor.
Events and Alarms are held within MediaBand for access via DbManager.
A dry contact alarm relay is available in the RJ12 port.
Clocks
Information and graphs showing clock movements over time. Shows frequency stability and the status of the clock.
Loop-Backs
Loops can be placed on the TDM port in either direction and at the Ethernet level.
Pings
MediaBand generates Ping/Trace Route and responds to Ping and UDP Echo requests.
Boot Test
Internal test on power-up with results visible via DbManager. |
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Software/Firmware Updates |
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New software can be loaded via the DbManager to MediaBand New software is loaded to the off-line sector of Flash and is confirmed via
a CRC. Users can switch to the new software at any time. DbManager can load new versions to multiple MediaBands simultaneously. |
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Power |
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Internal High-Quality AC supply |
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Auto-sensing, standard IEC input. |
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Optional DC Supplies 48VDC or 24VDC (nominal) |
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Replaces AC supply. Specify when ordering. |
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Specifications |
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A. TDM port (E1) |
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RJ45 connector
Presents as DCE (crossed cable for DTE)
120 Ohm
75 Ohm user-selectable via converter cable
G.703 unstructured
HDB3
Transparent to user signaling |
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B. TDM port (T1) |
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RJ45 connector
Presents as DCE (crossed cable for DTE)
100 Ohm
Unframed G.703 1.544Mbps
B8ZS or AMI selectable
Transparent to user signaling |
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C. Ethernet Interfaces |
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1 x SFP cage (module not supplied) for various fibre modes
1 x RJ45 UTP
10/100/1GE
Auto-sensing or manual |
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D. Local Management Port |
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RJ12
Asynchronous
Auto-sensing to 115kbps
Also remote access via packet network |
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E. Oscillator Performance* |
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Standard
Hold-over 24hrs 0.5ppm
Aging per day 20ppb
Temperature Stability 0.600ppm
Enhanced
Hold-over 24hrs 15ppb
Aging per day 10ppb
Temperature Stability 12ppb
* Figures based on typical parts and performances.
Individual oscillators may vary slightly.
Temperature Stability range -5°C to +70°C assumes
20 minutes from power on. Aging and holdover at constant temperature |
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F. IP & MAC Address |
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Single MAC address, IP address, subnet mask and default gateway |
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G. Configuration |
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Held in non-volatile memory |
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H. Power (AC) |
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Internal via IEC connector
Auto-sensing 96VAC-240VAC
Max consumption 0.2Amps RMS @230VAC
MTBF 400,000hrs |
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I. Power (DC)
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1. Nominal -48VDC
4mm terminal block
-33VDC to -75VDC
0.35A max
MTBF 1,790,000hrs
2. Nominal -24VDC
4mm terminal block
-18VDC to -75VDC
0.55A max
MTBF 800,000hrs |
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J. Dimensions & Environment |
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Metal chassis and front/rear panels
W – 225; D – 200; H – 44mm
Weight – 0.9Kg/2lb
Optional 19” rack-mount kit;
1 unit per 1U or 2 units side-by-side per 1U
Operating Temperature -20°C to +55°C
Humidity 10-90% non-condensing |
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K. Maintenance |
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There are no serviceable parts or maintenance required |
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L. Approvals |
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EMC
EN55022:1988
EN55024:1988
EN61000-3-2:2000
EN61000-3-3:1995
AS/NZ CISPR22:2000
FCC Part 15(B)
RoSH Compliant without the use of exceptions |
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M. Safety |
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EC EN60950-1:2002
ACA TS001:1997
ACS/NZ60950:2000
AS/NZS3260:1993
IEC950 |
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N. Telecomms (optional) |
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TBR12/TBR13
TBR4/TBR3
TIA/E1A-1S/968
TNA117
AS-ACIF S006/S016 |
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