NOVEMBER 1997 - REVISED MAY 2007

Specifications are subject to change without notice.

Customers should verify actual device performance in their specific applications.

TISP4xxxM3BJ Overvoltage Protector Series

Typical Circuits

Figure 15. Modem Inter-Wire Protection

FUSE

TISP4350

AI6XBMA

RING DETECTOR

HOOK SWITCH

D.C. SINK

SIGNAL

MODEM

RING

TIP

Figure 16. PROTECTION MODULE

R1a

R1b

RING

WIRE

TIP

WIRE

Th3

Th2

Th1

PROTECTED

EQUIPMENT

E.G. LINE CARD

AI6XBK

Figure 17. ISDN Protection

R1a

R1b

Th3

Th2

Th1

AI6XBL

SIGNAL

D.C.

Figure 18. Line Card Ring/Test Protection

TEST

RELAY

RING

RELAY

SLIC

RELAY

TEST

EQUIP-

MENT

RING

GENERATOR

S1a

S1b

R1a

R1b

RING

WIRE

TIP

WIRE

Th3

Th2

Th1

Th4

Th5

SLIC

SLIC

PROTECTION

RING/TEST

PROTECTION

OVER-

CURRENT

PROTECTION

S2a

S2b

S3a

S3b

V

BAT

C1

220 nF

AI6XBJ

TISP6xxxx,

TISPPBLx,

TISP6NTP2