Ctp150 Multiservice Interface Module - Juniper CTP Series Hardware Manual

On the CLK port, differential clock signals are output on the pins 4 and 17 of the HD-26 connector. When
an EIA-530A DCE-F serial cable (CTP150-CBL-DB25-DCE-F) is connected to the CLK port, the TT pins
24 and 11 of the DB25 connector output clock signals. If you configure a 32 kHz reference output, an
RS-422 32 kHz clock signal is generated on the pins. Even if you disable the 32 kHz reference output and
configure an external clock reference, the module expects an RS-422 clock input (of the configured
frequency) on the same pins.
NOTE: The external clock reference port must be the one in module slot 0, the left-most slot in
the front of the CTP150 chassis.
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CTP150 Multiservice Interface Module
The Juniper Networks CTP150 Circuit to Packet platform optionally includes a Serial Multiservice Interface
module CTP150-IM-SER-MS. The module provides 4-KHz or high quality analog audio, or interrange
instrumentation group (IRIG) signals.
The multiservice card enables an IRIG time code (IRIG-B) signal to be transported through an IP network.
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.
NOTE: Only ports 0 and 2 (the bottom two ports) on the front of the serial module can be used
for the multiservice features. You can configure direction, output high and low levels, and data
range for this module.
The four-port serial interface module supports individual cabling for each port. The CTP150 ports have
small serial ports for HD-26 26-pin connectors (see
(marked 0) is at the bottom left, and the highest-numbered port (marked 3) is at the top right.
Figure 4 on page 9). The lowest-numbered port
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