Nortel Networks 311

222 NT5D11 and NT5D14 Lineside T1 Interface cards

OSP <CR>

and against FTR respond:

ISP <CR>

The Lineside T1 card treats OSP and ISP for both originating and

terminating calls as hook ﬂash disconnect supervision, also known as cut-off

disconnect. Originating calls are outgoing from the terminal equipment.

Terminatingcalls are incoming to the ter minal equipment. The Lineside T1

card does not support battery reversal answer and disconnect supervision

on originating calls.

After the software is conﬁgured, power up the card and verifythe self test

results. The STATUS LED on the faceplate indicates whether or not the

Lineside T1 card has passed its self test, and is functional. When the card

is installed, this LED remains lit fortwo to ﬁve seconds as the self-test runs.

If the self-test completes successfully, the LED ﬂashes three times and

remains lit. When the card is conﬁgured and enabled in software, the LED

goes out. The LED goes out if either the motherboard or daughterboard is

enabled by the software. If the LED ﬂashes continuously or remains weakly

lit, replace the card.

The Lineside T1 card supports far-end disconnect supervision by opening

the tip side toward the terminal equipment upon the Meridian 1 system’s

detecting a disconnect signal from the far-end on an established call. The

Supervised Analog Line feature (SAL) must be conﬁgured in LD 10 for each

Lineside T1 port. At the prompt FTR, respond