Ctp2000 8P-Irig Interface Module; Ctp2000 Clock Interface Modules; Figure 23: Ctp2000 8P-Irig Interface Module; Interface - Juniper CTP2000 Series Hardware Documentation

CTP2000 8P-IRIG Interface Module

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CTP2000 Clock Interface Modules

Copyright © 2017, Juniper Networks, Inc.
CTP2000 FXS and FXO Interface Module Cables and Pinouts on page 45
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 23: CTP2000 8P-IRIG Interface Module

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 2W-FXS and 2W-FXO Interface Modules on page 19
Clock interface modules provide clock distribution between modules when the backplane
is in use by voice applications.
The clock rear transition module (RTM) is used to input a reference clock into the
CTP2000 platform. The clock RTM is installed in the rear of the chassis behind the first
interface module as follows:
On CTP2008 devices, the first slot above the processor RTM.
On the CTP2024 and CTP2056 devices, the first slot below the processor RTM.
Clock distribution is accomplished through a "hub-and-spoke" configuration composed
of a main module and a spoke module. Clock main modules
clock spoke modules (Figure 25 on page
chassis and provide the capability for clock distribution when both serial or T1/E1 interface
modules and voice modules are installed in the same CTP2000 chassis.
Chapter 2: CTP2000 Series Interface Modules
Figure 23 on page
CTP2000 IM 8P IRIG CTP200 0 IM 8P IRIG
(Figure 24 on page
26) allow more clock input types in the CTP2000
25.)
26) and
25