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The DataBand-MUX-32 is a resilient 8/16/32 port E1 T1 mux or stand-alone cross-connect switch.
It is an ideal replacement for legacy TDM switches which can no longer be supported (for example the GPT or Marconi P-Switch).
As a mux it inter-works with the smaller MUX-4 and during 2009 it will also be enhanced to provide multiple V.35 and/or X.21 ports.
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High reliability E1/T1 mux or cross-connect switch.
Supports 8, 16, 24 or 32 E1/T1 interfaces. Dual load-sharing PSUs. Ability to inter-link
“MUX-32” units to build a larger non-blocking single switch. |
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Features |
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Modular, resilient E1 T1 mux or cross-connect |
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Non-blocking |
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Full cross-connection between any/all timeslots |
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Telecoms approvals for connection to carrier
leased lines |
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Load-share hot-swappable AC/DC PSUs |
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Shares E1 T1 circuits between multiple local
devices |
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Ports 120Ohm 75Ohm user switchable |
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Optional E1 to T1 conversion |
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Supports A-Law to μ-Law for voice conversion |
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Generate or pass timeslot 0 on a per-port basis |
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Clocking hierarchy |
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High quality internal clock |
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Inter-link MUX-32s for a larger cross connect
switch |
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Works with 4 port “MUX-4” |
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Easy to configure and manage |
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Remotely manageable and software
upgradeable |
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N*64K bps V35/X.21 card available Q4 ‘09 |
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1. Overview
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The DataBand models detailed within this document support up to 32
E1/T1 interfaces via two card types, either 8-port or 16-port cards.
The ports on the 8-port card have Telecoms Approvals for direct
connection to a carrier network. The ports on the 16-port cards are
for connecting to local devices only.
When mixing an 8-port and a 16-port card the 8-port is always in
the lower position. See the Ordering Information PDF for details.
The unit will connect any port to any port and any timeslot to any time
slot without constraint, giving full cross-connectivity between all ports,
both local and network channels.
Interfaces are RJ45 but can be user-configured as either 120Ohm or
75Ohm on a per-port basis. Patapsco have available an RJ45 to
BNC conversion cable.
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As standard DataBand “MUX-32” can be user configured with either
all E1 or all T1 interfaces. Purchasing the optional E1 T1 conversion
pack means both E1 and T1 can be supported on the same unit and
selected on a per-port basis.
An 8-port and a 16-port card for N*64Kbps V.35 and X.21 ports
will be available Q4 ‘09. The chassis will support up to 32
V.35/X.21 ports or 16 E1/T1 and 16 V.35/X.21.
The intuitive DbLite GUI (supplied) enables fast and simple
configuration and a number of full DbManager packages provide
enhanced features and visibility plus control of multiple units. |
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The Mux-32 can inter-work and deliver multiple low-speed or
fractional E1/T1 circuits between locations. V35/X.21
available Q4 ‘09.
See the MediaBand-32 if you need to inter-connect across fibre. |
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2. Operation |
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2.1 Routing
A simple to use GUI (Graphical User Interface) makes configuring and
routing timeslots fast and easy, with an excellent overall view of interconnects.
Any timeslot can be routed to any other (timeslots zero have the usual
constraints and can be passed transparently or generated locally).
DataBand is completely transparent to all data and signaling
2.2 Routing and Summary Windows
A choice of easy to understand summary windows display the routing
configurations. These include a complete display of all routing profiles
and a summary of active connections.
2.3 Diagnostics
DataBand provides excellent diagnostic and debug tools including
loops on any port.
2.4 Configuration/Management
DataBand is configured and managed by Patapsco’s DbManager -
see separate Tech Sheets.
DbManager is an intuitive GUI which supports multiple real-time
workstations and is the common platform for all Patapsco products.
Versions are available which can be configured for a single
DataBand or simultaneously manage/monitor many.
Configuration/management sessions can be established remotely or
locally through the unit’s serial port or optional Ethernet port.
SNMP Traps & Alarms are optionally supported.
2.5 E1 to T1 Conversion
DataBand can optionally convert between E1 and T1 with necessary
support for A-Law to μ-Law encoding conversion for voice traffic. |
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3. General |
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3.1 Clocking
Software-selectable clock source, extracting clock and locking to any
E1/T1 port or a very high quality 0.15ppm internal clock.
Clocking hierarchy with auto-switchover between clocks with no user
impact. Auto recovery to higher priority clocks when they become
available.
3.2 Real-Time Clock
Internal battery-backed real-time clock for Event Log time-stamps and
debugging purposes.
3.3 Events
Up to 5000 Events are held within the DataBand in NV RAM on a
FIFO basis.
Events can be reported automatically to the DbManager via the local
serial port or the optional Ethernet interface.
This can be on a timed schedule or when the Event Log reaches
90%. Once Events are successfully reported to the DbManager the
log is cleared. DbManager can also access the logs and download
them when required.
DbManager writes all Events and Alarms to a flat .csv file in real-time
and this file can be manipulated by external tools to format and
extract information.
3.4 Approvals
The DataBand “MUX-32” benefits from a wide range of Safety and
Emissions approvals and the 8-port card also has Telecoms Approvals
for direct connection to carrier leased lines/networks.
All Patapsco equipment is RoHS compliant without having to resort to
the use of temporary “Exemptions”.
3.5 Configuration
Held in non-volatile RAM (retained during power off) and
downloadable to/from the DbManager. Configuration files can be
saved to a file on a PC.
3.6 Software
New versions of software can be remotely uploaded to DataBand via
the DbManager. This is loaded to an off-line sector of FLASH and a
confirmation check-sum given. The operator can switch software
banks at any time and revert to the original software at any time. If
the DataBand is unable to run from the new software, it will revert to
the original. |
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Mux-32 inter-working with the smaller Mux-4 to distribute fractional
E1/T1s. |
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4 Specification |
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4.1 Interfaces |
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• 4.1.1 E1/T1
16-port cards marked as Ports 1 to 16 and Ports 17 to 32.
8-port cards marked as ports 1 to 8 and 17 to 24.
When mixing 8 and 16 port cards ports 9-16 will not exist.
By default all ports are DCE – crossed cable required to connect
DTE ports
E1
RJ45 120Ohm balanced (E1)
CRC4 or non- CRC4 framing
(Multiframe or Doubleframe)
CRC4 disabled if passing timeslot 0
Support of E1 and Fractional E1 services
T1
RJ45 100Ohm balanced T1
ESF or D4 Framing selectable
B8ZS or AMI Line code selectable
• 4.1.2 Control Ports
RJ11 Marked ‘Terminal’
Asynchronous 8 data,1 stop bit no parity 19.2kbps to 115kbps
Password protected
Dry contact alarm relay
Optional Ethernet RJ45 marked ‘10baseT/100baseT/1GE’
Password protected
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4.2 LEDs
Each E1/T1 has 1 associated LED
Fl slowly=synchronising to Layer 1; fl quickly = synchronising Layer
2; solid= synchronised
PWR x 1 Unlit=no power; Green=power on unit
Run x 1 slow flash=microprocessor OK and configured; fast
flash=no base configuration
LAN ACT x 1 Activity on the LAN
LAN 100 x 1 Off=LAN running at 10baseT; on=LAN running at
100baseT
4.3 Power
Support for 1 or 2 supplies
Hot swapable to ATCA.
One supply can power a fully populated chassis.
AC
Auto-sensing 96VAC – 240VAC
Max consumption 0.5A RMS @230VAC
DC
4mm terminal Block
36VDC tp 57VDC
1.2A max
4.4 Environment
Operating -20°C – 55 °C
Humidity 10-90% non-condensing
Natural convection cooling
Optional fans for extended
temperature range
4.5 Physical
Metal chassis and front/rear panels
W – 225; D – 320 (300 from
mounting); H-88mm
Weight – 10.5Kg max
4.6 Maintenance
There are no serviceable parts or maintenance required.
The battery used for the real-time clock and some NV RAM
elements has a 7 year (typical) life-time. |
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