PR O D UC T

I N FO R M A T IO N

7

AUGUST 1999 — REVISED NOVEMBER 1999

TISP4070L3BJ, TISP4350L3BJ

BIDIRECTIONAL THYRISTOR OVERVOLTAGE PROTECTORS

power cross pass routes

This discussion covers typical modem flows.

FLOW

COMMENT

box A

The criterion for box A is if the modem connects to an outside TNV

line.

The majority of modems will be connected to an outside line, so the

box B

The criterion for box B is if the equipment has a limit of

and often miss the 600 V a.c. breaking requirement. However, the

current loop is completed by the fuse and other equipment

performance, the other current loop components, such as the printed

boxes E and I

The criterion for box E is for a minimum telecommunications line cord

of No. 26 AWG to be supplied or specified.

The criterion for box I is to pass Test 1.

goes to box F.

No tests

B

Y

E

B

A

C

N

Y

Y

Fail

E

F

I

N

N

Y

Y