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Dual-port unit with E1/T1 and V.35/X.21
to Fibre/Fiber Media Converter
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Remotely manageable and able to transport Ethernet traffic down the same fibre. MediaBand-EV transports a single
E1/T1 and a single V.35/or X.21
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 and centrally manageable
via Ethernet |
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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
carrier 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-EV delivers a single E1/T1 plus a single X.21 or V.35 circuit
transparently across a fibre link.
Pairs of MediaBands are required, but different versions can be used at each end of the
fibre, 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 fitted and this can connect to a LAN for transportation of Ethernet
traffic across the fibre link, for example, or for management and Event/Alarm reporting,
or for cascading MediaBands together so multiple devices can use the same fiber link.
This Ethernet port can be “Rate Limited”. |
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Interfaces |
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A single E1/T1 running G.703
A single X.21 or V.35 interface with DCE/DTE options and speeds from 64kbps to
2.048Mbps
Standard MRAC or 15-way “D” interface presentations so no converter cables
required.
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 for local configuration (can be disabled)
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) |
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Clocking and Clock Sources |
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MediaBand can be easily configured via the GUI Manager to handle clocks 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 (using its very accurate on-board oscillator) 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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Diagram 1 |
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Diagram 2 illustrates a scenario where an external clock is available.
MediaBand passes the clock across the fibre link ensuring both ends are synchronised to the external clock source.
Configuration parameters |
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Configuration parameters are set locally or remotely via the intuitive graphical interface, DBManager |
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Ethernet Port |
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MediaBand-EV comes with a copper UTP 10/100/1GE Ethernet port which can be used to transport user Ethernet traffic through
MediaBand and across the fibre, as shown in diagram 3.
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This Ethernet port can also be used for centralised management of a particular unit or its partner at the other end of the fibre, or a network
of MediaBands
This means a single fibre link can transport an E1/T1 and a V.35/X.21 trunk PLUS Ethernet traffic.
The Ethernet port can also be used to cascade MediaBands, thereby getting maximum use from a single fibre path as per diagram 4
which shows a pair to MediaBand-EVs and a pair of MediaBand-4s, giving a total of 5 E1/T1s and a V.35/X.21 port. |
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Rate Limiting |
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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 serial
links.
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. |
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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-VX is RoHS compliant without the use of “exceptions”. |
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Management |
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Overview |
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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.
Movies are available at www.patapsco.co.uk |
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Configuration Changes |
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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 can be performed remotely (other than setting an IP
address unless a DHCP server is available).
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 circuits and Ethernet
port. |
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Alarms/Events |
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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.
Software/Firmware Updates
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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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 V.35
“M-Rack” 37 pin female DCE - provides clock
“M-Rack” 37-pin male DTE – takes clock
Speeds from 64kbps to 2.048Mbps
B. TDM port X.21
15-way “D” female DCE – provides clock
15-way “D” male DTE – takes clock
Speeds from 64kbps to 2.048Mbps
C. TDM port (E1)
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 signalling
D. TDM port (T1)
RJ45 connector
Presents as DCE (crossed cable for DTE)
100 Ohm
Unframed G.703 1.544Mbps
B8ZS or AMI selectable
Transparent to user signalling
E. Ethernet Interfaces
1 x SFP cage (module not supplied) for various fibre modes
1 x RJ45 UTP
10/100/1GE
Auto-sensing or manual
F. Local Management Port
RJ12
Asynchronous
Auto-sensing to 115kbps
Also remote access via packet network
G. Oscillator Performance*
Standard
Hold-over 24hrs 0.5ppm
Ageing 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
H. IP & MAC Address
Single MAC address, IP address, subnet mask and default
gateway
I. Configuration
Held in non-volatile memory
J. Power (AC)
Internal via IEC connector
Auto-sensing 96VAC-240VAC
Max consumption 0.2Amps RMS @230VAC
MTBF 400,000hrs
K. Power (DC)
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
L. Dimensions & Environment
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
M. Maintenance
There are no serviceable parts or maintenance required
N. Approvals
EMC
EN55022:1988
EN55024:1988
EN61000-3-2:2000
EN61000-3-3:1995
AS/NZ CISPR22:2000
FCC Part 15(B)
RoHS Compliant without the use of exceptions
Safety
EC EN60950-1:2002
ACA TS001:1997
ACS/NZ60950:2000
AS/NZS3260:1993
Telecomms (optional)
TBR12/TBR13
TBR4/TBR3
TIA/E1A-1S/968
TNA117
AS-ACIF S006/S016
For ordering information, see separate document |
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