Comdial and FXT Manual de usuario descargar pdf (Pagina 29)

Installing

System-to-System Networking

Installing the network requires a complete understanding of the elements discussed in the following paragraphs.

Further, you should refer to the system manuals listed in Detailing the Related Publications on page 4 for

installation details about the various system components.

Ensure the system is properly grounded and then place the CPU board in the appropriate cabinet. Ensure that the

latest bootloader on the memory card is attached to the CPU board. Remove all boards from the cabinet.

Detailing Equipment Needs

1. The network requires a DXP, DXP Plus, or Impact FXS/FXT system installed at the hub site and

additional systems at the node site(s).

2. Every node requires a minimum of four meg nob and two meg scratch.

3. Every node site requires a minimum of one DXNET or FXNET network interface board for every link to

the hub.

NOTE: The call traffic volume determines the number of links needed to connect each node to the hub. Some

sites may require only one link while others may require more. Keep in mind that each link can support

up to twenty-three channels carrying twenty-three simultaneous calls. If the System-to-System expected

network load is higher, you must arrange for multiple links. When you do this, you have certain system

maximums that you must consider. These considerations include: the maximum channel capacity and

the maximum number of T1/E1 boards that the hub supports. Remember that the hub must make a

channel available to match every node channel.

A DXP supports a maximum of 128 channels and six T1/E1 boards; however, since the full T1/E1

capacity equals 138 channels, which exceeds the system’s 128 channel maximum, one T1/E1 board

must be fractional.

The DXP Plus supports a maximum of 240 channels and 10 T1/E1 boards. In this case DXP Plus

systems can make all 240 channels available over the maximum of 10 T1/E1 boards.

An Impact FX 112 supports 112 channels and 4 T1 boards or 3 E1 boards.

An Impact FX 224 system supports 224 channels and 9 T1 boards or 7 E1 boards.

An Impact FX 464 supports 240 channels and 10 T1 boards or 8 E1 boards.

Remember, the total channel capacity available for network links at both the hub and the nodes is

reduced by however many CO lines you connect at these systems.

continued...

Installation – 27

Installing and Using System-to-System Networking IMI89–280

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Comdial and FXT Manual de usuario Pagina 29