Calling Line Identifier
MX602 - PRELIMINARY INFORMATION
12
5. Application Notes
5.1 Typical Caller Identity Delivery (Caller ID) System Signals
Figure 11, Figure 12, and Figure 13 illustrate the line signaling and MX602 input and output signals for typical Bellcore
and British Telecom system use.
The Data Retiming function is not used in these examples (RXCLK kept high).
3400 to 4400 mS
≥ 250mS
250mS
150mS
≥ 200mS
SIGNALING
FIRST
RING
CHAN
SEIZE
MARK
MESSAGE
RINGING
RD
RT
IRQ
ZP
MODE
DET
RXD
Figure 11: Bellcore System Signals
250mS
150mS
CHAN
SEIZE
SIGNALING
MARK
MESSAGE
0
1
RD
RT
IRQ
1
0
1
0
ZP
FSK
DET
RXD
Figure 12: Bellcore System Signals (without ring)
© 1998 MX•COM Inc.
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