Table 8: Ground-Start Signaling At Fxs Interface For Call Initiated By The Fxs; Table 9: Ground-Start Signaling At Fxs Interface For Call Initiated By The Fxo - Juniper CTP2000 Series Hardware Documentation

CTP2000 Hardware Documentation
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Table 7: Ground-Start Signaling at FXO Interface for Call Initiated by the
FXS Interface (continued)
FXO goes off-hook (closes
loop)
Duration of call
Table 8: Ground-Start Signaling at FXS Interface for Call Initiated by the
FXS Interface
Idle (before call starts)
FXS goes off-hook (grounds
tip and sends AC ring signal)
FXO goes off-hook (closes
loop)
Duration of call
Table 9: Ground-Start Signaling at FXS Interface for Call Initiated by the
FXO Interface
Idle (before call starts)
FXO grounds ring
FXS goes off-hook (grounds
tip and sends AC ring signal)
FXO goes off-hook (closes
loop)
Duration of call
CTP2000 Serial Interface Modules on page 11
CTP2000 T1/E1 Interface Module on page 12
CTP2000 Compression Interface Module on page 12
CTP2000 Compression 2 High Density Interface Module on page 13
CTP2000 4WE&M Interface Module on page 14
CTP2000 8P-IRIG Interface Module on page 25
Signaling Bits to FXO
11
11
Signaling Bits to FXS
11 (A=1, B=1)
00/01 (B-bit toggles)
01
01
Signaling Bits to FXS
11 (A=1, B=1)
11
01
01
01
Copyright © 2017, Juniper Networks, Inc.
Signaling Bits from FXO
01
01
Signaling Bits from FXS
01 (A=0, B=1)
01
11
11
Signaling Bits from FXS
01 (A=0, B=1)
00
00
11
11