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Table 7: Ground-Start Signaling at FXS Interface for Call Initiated by the FXO Interface (continued)

Signaling Bits from FXSSignaling Bits to FXS

1101FXO goes off-hook (closes loop)

1101Duration of call

RELATED DOCUMENTATION

CTP2000 Serial Interface Modules | 11

CTP2000 T1/E1 Interface Module | 13

CTP2000 Compression Module | 13

CTP2000 4WE&M Interface Module | 14

CTP2000 8P-IRIG Interface Module | 26

CTP2000 FXS and FXO Interface Module Cables and Pinouts | 48

CESoPSN Bundle Overview

CTP2000 8P-IRIG Interface Module

The CTP2000 8P-IRIG interface module enables an interrange instrumentation group time code (IRIG-B)

signal to be transported through an IP network. IRIG-B is a special time code transmission format that uses

a hybrid analog/digital physical interface. The IRIG-B standard consists of a family of rate-scaled serial

time codes with formats containing up to three coded expressions or words. The IRIG-B pulse code contains

one frame of 100 elements per second for the time of the year and GPS receiver status. IRIG-B encodes

day of year, hour, minute, and second data on a 1-KHz carrier frequency, with an update rate of once per

second.

The CTP2000 8P-IRIG module has eight ports. You can configure direction, high and low level output, and

data range for this module. (See Figure 24 on page 27.)

NOTE: CTP2000 8P-IRIG Interface Module can no longer be purchased.

Juniper CTP2024 Hardware Guide

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