ZyXEL Communications P-202 manual NetCAPI Setup, Loopback test Data Link Connection PtMP and PtP

Prestige 201 ISDN Access Router

When you are finished, press ENTER at the message: ‘Press ENTER to confirm’, the Prestige uses the information that you entered to initialize the ISDN line. It should be noted that whenever the switch type is changed, the ISDN initialization takes slightly longer.

At this point, the Prestige asks if you wish to test your ISDN. If you select Yes, the Prestige will perform a loop-back test to check the ISDN line. If the loop-back test fails, please note the error message that you receive and take the appropriate troubleshooting action.

Setup LoopBack Test...

Dialing to 40000// ...

Sending and Receiving Data ...

Disconnecting...

LoopBack Test OK

### Hit any key to continue. ###

Figure 2-12 Loopback test

Data Link Connection: PtMP and PtP

There are two modes of data link connections: Point-to-Multipoint (PtMP) and Point-to-Point (PtP). In PtMP line configuration you can plug several pieces of equipment into the same ISDN line. The Telco automatically allocates each piece of equipment on your side, it's own unique ID number, known as a TEI (Terminal Endpoint Identifier). Thus, in the case of PtMP information transfer, a frame is directed to one or more endpoints.

In, PtP configuration only a single TEI is allocated to the line, which means that only ONE piece of equipment can be connected directly to the line. In this case, a frame is directed to only one endpoint.

For more information about data link connections, please refer to the CCITT Recommendations Q.920/921.

2.10.3 NetCAPI Setup

Your P201 supports NetCAPI. NetCAPI is ZyXEL's implementation of CAPI (Common ISDN Application Program Interface) capabilities over a network. It runs over DCP (Device Control Protocol) developed by RVS-COM.

NetCAPI can be used for applications such as Eurofile transfer, file transfer, G3/G4 Fax, Autoanswer host mode, telephony, etc. on Windows 95/98/NT platforms.

CAPI

CAPI is an interface standard that allows applications to access ISDN services. Several applications can share one or more ISDN lines. When an application wants to communicate with an ISDN terminal it sends a

Hardware Installation & Initial Setup 2-13