TISP4070M3LM THRU TISP4095M3LM, TISP4125M3LM THRU TISP4220M3LM,
TISP4240M3LM THRU TISP4400M3LM
BIDIRECTIONAL THYRISTOR OVERVOLTAGE PROTECTORS
NOVEMBER 1997 - REVISED APRIL 1999
typical circuits
TIP
WIRE
MODEM
FUSE
RING DETECTOR
HOOK SWITCH
TISP4350
OR
TISP4400
D.C. SINK
SIGNAL
AI6XBM
RING
WIRE
Th1
Th2
R1b
AI6XBK
E.G. LINE CARD
TIP
WIRE
R1a
Th3
PROTECTED
EQUIPMENT
RING
WIRE
Figure 14. MODEM INTER-WIRE PROTECTION
Figure 15. PROTECTION MODULE
R1a
Th3
Th1
Th2
R1b
AI6XBL
D.C.
SIGNAL
Figure 16. ISDN PROTECTION
OVER-
CURRENT
PROTECTION
TIP
WIRE
R1a
RING/TEST
PROTECTION
TEST
RELAY
RING
RELAY
SLIC
RELAY
S3a
SLIC
PROTECTION
Th4
Th3
Th1
Th2
RING
WIRE
R1b
S1a
S2a
SLIC
Th5
S3b
S1b
S2b
TISP6xxxx,
TISPPBLx,
�½TISP6NTP2
C1
220 nF
V
BAT
TEST
EQUIP-
MENT
RING
GENERATOR
AI6XBJ
Figure 17. LINE CARD RING/TEST PROTECTION
PRODUCT
10
INFORMATION
POINN [ POWER INNOVATIONS LTD ]
