TISP7070H3SL THRU TISP7095H3SL, TISP7125H3SL THRU TISP7210H3SL
TISP7250H3SL THRU TISP7400H3SL
TRIPLE BIDIRECTIONAL THYRISTOR OVERVOLTAGE PROTECTORS
MARCH 1999 - REVISED MARCH 2000
typical circuits
TIP
WIRE
F1a
R1a
Th3
Th1
PROTECTED
EQUIPMENT
E.G. LINE CARD
Th2
F1b
R1b
AI7XBK
RING
WIRE
TISP7xxxH3
Figure 12. PROTECTION MODULE
R1a
Th3
SIGNAL
Th1
Th2
R1b
AI7XBL
TISP7150H3
D.C.
Figure 13. ISDN PROTECTION
OVER-
CURRENT
PROTECTION
SLIC
PROTECTION
RING/TEST
PROTECTION
TEST
RELAY
RING
RELAY
SLIC
RELAY
TIP
WIRE
S3a
R1a
Th4
Th5
Th3
S1a
S2a
COORDIN-
ATION
RESISTANCE
Th1
Th2
SLIC
R1b
RING
WIRE
S3b
TISP7xxxH3
TISP6xxxx,
TISPPBLx,
½TISP6NTP2
S1b
S2b
VBAT
C1
220 nF
TEST
EQUIP-
MENT
RING
GENERATOR
AI7XBJ
Figure 14. LINE CARD RING/TEST PROTECTION
P R O D U C T
I N F O R M A T I O N
12
POINN [ POWER INNOVATIONS LTD ]
