Multiple Trunk Types - NEC SL1000 Features And Specifications Manual

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The SL1000 supports many different Trunks in the system (DID, Loop Start, ISDN BRI, ISDN PRI).

The system supports up to 126 trunks using expanded KSUs.

Refer to the

Direct Inward Dialing (DID) on page 1-166

Loop Start Trunks

Loop Start Trunks can be connected to the SL1000 system. Loop Start is assigned per trunk at the

associated unit. Ground Start and Loop Start Trunks can be mixed in the system per trunk.

Refer to the

ISDN Compatibility on page 1-298

Refer to the

ISDN Compatibility on page 1-298

T1-E1 Trunks

The T1/PRI/E1 Interface gives the system T1/E1 trunking ability. This unit uses a single universal slot

and provides up to 24/30 trunk circuits. In additional to providing digital-quality trunking, the T1/PRI

Interface allows you to have maximum trunking ability with fewer units. This in turn makes more

universal slots available for other functions.

• When adding or removing padding for trunks, use Program 14-01 for all trunks.

Default Settings

System Availability

All Terminals

Required Component(s)

Any Trunk Unit

Multiple Trunk Types

feature for related information.

Multiple Trunk Types

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