Port Trunking defines a network link aggregation and trunking method which specifies how to create a single high-speed logical link that combines several low-speed physical links. CeLAN's Intelligent Switch and EtherSW 2400F/ 1600F all support port trunking function.

Port trunking is connecting two switches with multiple links that act as one high-bandwidth link. Up to four port (full- or half-duplex) can be used for each trunk on a Switch 2000 or Switch 800t. This enables up to 800 Mbps of bandwidth for linking switches. The benefits of port trunking are: The illustration below shows how port trunking is used in three different locations. Initially, all of the links were 100 Mbps links at 100TX speed and in full duplex mode.

Trunking is the technology where a pool of frequency channels is available to a large number of different user groups. The trunking system transmits a continuous data channel that steers radios assigned to the same talk-group to one of the system frequencies when there is a request by one of the units to transmit. The technology is very efficient and has been in use by telephone companies for a very long time.

Yes. You can create up to 22 trunk groups with the HP ProCurve Routing Switches. It is possible to use from two to eight ports (two to four ports prior to software version 7.5.x) for each trunk group.

Probably yes! The BC780XLT works on almost every type of trunking system, including Motorola Type I, Type II and Iii, as well as EDACS (wide and narrow!) and LTR.

So much you may have a hard time choosing! You can go off on your own, or take a guided tour. You can search ancient ruins or go bargain shopping. Ride a raft over river rapids, a bicycle down the side of a 10,000-foot volcano, or ride a horse across miles of hills and beaches. Climb a waterfall or a pyramid. See the birthplace of civilization or listen to a steel drum band. Follow the footsteps of history or the wake of a water-skiing boat. If there's still time, play golf or tennis.

So much you'll have a hard time choosing! You can go off on your own. Or take a guided tour. You can search ancient ruins or hunt for shopping bargains. Ride a raft over river rapids, a bicycle down the side of a 10,000 foot volcano, or ride a horse across miles of hills and beaches. Climb a waterfall or pyramid. See the birthplace of civilization or listen to steel drum bands. Follow the footsteps of history or the wake of a water-skiing boat. If there's still time, play golf or tennis.

On conventional radio systems, we tend to associate physical frequencies with the agencies that use them. On trunked radio systems, a different representation must be used since any frequency can be used by any agency on that system. Since a trunked radio system is at the mercy of the computer controller, it is beneficial to use the same representation that it does to identify the various agencies found on a system.

Are you certain you know the trunked system type (Motorola, EDACS, LTR)? There are some variations on each of these systems as well. In the Bearcat 780 you have to know the trunked system type. Have you set the system type for the appropriate bank? Before you set the system type through the Menu, the scanner asks you to confirm the bank into which you're programming the trunked system. Make sure you've got the correct bank number.

You can request a port every 60 days from the date of the successful porting. After the 60 days have lapsed, a new port can be requested and a new Port Request and Activation process can be invoked, but bear in mind that if you are a contract subscriber that you will always be responsible for the outstanding balance on your subscriber contract, so frequent porting could become quite costly.