Lucent Technologies 7820-0802-003 manual Hybrid Access card implementation

Configuring Series56 II and III Modem and Hybrid Access Cards

Preventing Series56 II and III cards from delaying Frame Relay connections

Preventing Series56 II and III cards from delaying Frame Relay connections

If the APX 8000 or MAX TNT has a Frame Relay datalink that uses a single nailed channel, you must install Series56 II or Series56 III slot cards in lower-numbered slots than the Hybrid Access (HDLC) slot cards, or dedicate the Series56 cards to modem processing by deleting the Digital Call-Type profiles. Otherwise, you are likely to experience delays in establishing Frame Relay connections. See Chapter 19, “Configuring Call Routing” for more information.

Hybrid Access card implementation

Each ISDN call, and each channel of a nailed session, requires an HDLC channel to process the HDLC-encapsulated data received from or destined to a WAN interface. Because the following cards require HDLC channels, you might need to install a Hybrid Access card in your unit:

•Eight-port E1 card

•Eight-port T1 card

•T3 card

The Hybrid Acces card is supported on the DSLTNT. On an APX 8000 or MAX TNT unit, Series56 II and III cards also provide up to 48 HDLC channels per card.

APX 8000/MAX TNT/DSLTNT Physical Interface Configuration Guide 5-5