Low-Risk Migration to Digital - DMR & dPMR Protocols
Who is to say that all users, particularly in a large diverse organisation, will prefer the characteristics of digital radio to those of analogue? Certainly there is much documented evidence that fire-fighters see safety issues with the ‘all-or-nothing’ manner of digital. Crane operators cannot tolerate any speech delay over the radio; half a second could spell the difference between a safely loaded container and a collision.
Can large users afford to swap-out vast networks in one big-bang? What if the new system falls down? If the new system cannot be brought on-line in parallel with the old (this is not always possible, due to lack of spectrum or health and safety issues), how can the new system be tested under realistic peak loads? Is the capital available for a mass swap-out? Would it not be better to spread the cost and the risk?
The
Fylde migration strategy takes into account all of these factors:
•
Large established users may not wish to accommodate a ‘big-bang’
swap-out
• Existing network equipment may not be life-expired or fully amortised
• Some users may not wish to change to digital
• All users, regardless of technology,
will still want to communicate with one another
To get from analogue conventional or MPT1327 to a digital technology with Fylde equipment takes 3 very straightforward and controllable steps.
Step
1
Upgrading the Inter Regional Processor (IRP)
Network
Bridge Diagram CLICK HERE >>
Large established Fylde network users invariably have an Inter-regional Processor or IRP. This device provides for the connection of up to 16 regional controllers (RCPs). Using 3rd-party multiplexors and converters almost any physical carrier may be used to convey these control signals, however the native transport is RS232.
The new Multilingo TSC04 system communicates natively using IP protocols, within the site rack at least, over Ethernet. Since the IRP is mechanised using a ruggedised industrial PC, it is the obvious platform to use as a bridge between the new (IP) and the old (RS232).
The IRP hardware will in most cases require little or no alteration. The operating system will be changed from Microsoft DOS 6.22 to Linux OS. A new version of Fylde software will be installed to provide a ‘bridge’ from the legacy TSCC01/02/03 based system to the new Multilingo TSC04 equipment. In addition, some method of converting the analogue speech of the old system to the fully digitised speech of the new must be provided. Note: with Multilingo the speech is digital throughout, even when used in analogue mode.
It is important to note that the cards in the audio converter, comprising the new Multilingo items, can be reused as normal channel controller cards once the system upgrade has been completed.
At this point, users should notice no difference whatsoever in the operation of the old system as all we have provided so far is a bridge to the new technology. The next stage involves putting new sites on the other side of this bridge.
Please note: TSCC04 will be available in 2011
New
Multilingo TSC04 sites can be added as and when required. These may be totally new sites or replacements for legacy installations. At
each stage, the performance can be monitored and most
importantly, costs controlled. All the while, the radio
users should detect no difference in operation. Risk
is therefore minimised.
NEW for OLD swap out deals are available:
ANY
earlier version of Fylde supplied Infrastructure is eligable
to a considerable discount when traded in for a new controller..
Please note: TSCC04 will be available in 2011
Step
3 – Decommission the IRP
After the last legacy site and regional node is decommissioned the IRP and it’s
bridge components are no longer required.
The audio converter box is mechanised using standard TSC04 channel cards, but running special software. These may be re-flashed with operational trunking code and redeployed within site equipment.
Please note: TSCC04 will be available in 2011
NETWORK
BRIDGE - Legacy network to new TSC04 network
Large
established Fylde network users invariably have an Inter-regional
Processor or IRP. This device provides the connection for
up to 16 regional controllers (RCPs). The IRP hardware will
in most cases require little or no alteration. A new version
of Fylde software will be installed to provide a ‘bridge’
from the legacy TSCC01/02/03 based system to the new Multilingo
TSC04 equipment.
ZOOM Network Bridge Diagram
.
ZOOM Small Network Diagram
ZOOM Larger Network Diagram
NEW
for OLD swap out deals are available:
ALL earlier versions of Fylde
supplied Infrastructure are eligable to a considerable discount when
traded in for new Fylde equipment.. Please note: TSCC04 will be available in 2011
No one offers a more comprehensive, low risk migration strategy
Contact
Fylde now for more details on availability, upgradeability and interconnectivity
plans. CONTACT US>>
Large established Fylde network users invariably have an Inter-regional Processor or IRP. This device provides the connection for up to 16 regional controllers (RCPs). The IRP hardware will in most cases require little or no alteration. A new version of Fylde software will be installed to provide a bridge from the legacy TSCC01/02/03 based system to the new Multilingo TSC04 equipment.
successfully rolling out networks with our 3rd generation product to meet modern
day voice and data communications challenges.
