Qualitrol INFORMA PMD-A, User Manual

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Components and Specifications
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Using IRIG-B
INFORMA PMD-A can be configured to use an external IRIG-B time source as the time
reference. Connect the IRIG-B cable from the IRIG-B time source to the BNC connector.
INFORMA PMD-A IRIG-B supports the following:
1. IRIG-B 001
Modulation Type : Unmodulated, also called DC level shift.
Frequency/Resolution: No carrier
Coded expression : BCD (does not include year information), CF (includes year
information).
2. IRIG-B 121
Modulation Type: Amplitude Modulated Sine Wave
Frequency/Resolution: 1000 Hz carrier
Coded expression: BCD (does not include year information), CF (includes year
information).
The INFORMA PMD-A device to which the IRIG-B time source is connected will be the time
master. This time master INFORMA PMD-A device may now be used to provide time
synchronization to other slave INFORMA PMD-A devices, using the differential or Fiber
connection for PPS synchronization.
Using IRIG-J
INFORMA PMD-A can be configured to use an external IRIG-J time source as the time
reference. Connect the serial cable from the IRIG-J time source to the RS232-2 port.
INFORMA PMD-A IRIG-J supports IRIG-J-14.
IRIG-J-14
The IRIG-J-14 is a Time-of-Year format with a 1-second resolution and frame length. The
IRIG-J-14 baud rate is 1200.
The INFORMA PMD-A device to which the IRIG-J time source is connected will be the time
master. This time master INFORMA PMD-A device may now be used to provide time
synchronization to other slave INFORMA PMD-A devices, using the differential or Fiber
connection for PPS synchronization.
3.10.2. INFORMA PMD-A as Slave
When INFORMA PMD-A is configured as a time slave, it receives PPS input from the time
master and derives the time of the day by using NTP over the network.
INFORMA PMD-A can be configured as a time slave using iQ+, as shown in the following
figure. Refer to iQ+ help for additional information.
For INFORMA PMD-A to be fully time-synchronized as a time slave, both PPS
and NTP are required from the time master.