DOC 6501_Release V
ATS-6501 Users Guide
17
2.4.1 Power Supplies
The ATS-6501 operates with two power supplies capable of operating on different power sources.
The 4385A (AC Power Supply) and 4386A (DC Power Supply) are available. The ATS-6501 is
capable of operating on one power supply in the event the other fails or its input source fails.
Power Supply #1 is on the left and Power Supply #2 is on the right. See Appendix A for the
specifications on the Power Supplies.
2.4.2 Input/Output Cards
The ATS-6501 will operate with five different types of output cards and one input card. The
cards can be operated in any of the six slots. The unit will automatically detect and configure the
system based on the card(s) installed. The card slots are identified by slot number so the operator
is capable of identifying the cards physical location in the chassis. The view below is from the
rear of the unit from left to right.
Slot 1 Slot 3 Slot 5
Slot 2 Slot 4 Slot 6
Figure 3
Rear Panel Output Card Locations
Each input/output card has four connectors with the port number identified as shown below in
Figure 4. See Appendix A for the specifications of each card.
Figure 4 Input/Output Cards
2.4.2.1 4394A (PPS/DC IRIG)
The factory default for this module provides two 1PPS outputs and two DC IRIG (B000) Outputs.
Outputs 1 and 2 are 1PPS and Outputs 3 and 4 are DC IRIG.
The output types are user selectable/programmable. Users can change the signal types (PPS/DC
IRIG), the PPS signal parameters, and the IRIG signal types on individual output ports.
• PPS: Valid PPS settings are 1, 10, 100, 1K, 10K, 100K, 1M, and 10M PPS. To set
the PPS signal parameters use the pps command:
ATS-6501> pps [slot#] [port#] [pulse period] [pulse width]
The following example sets the PPS on Slot 1, Port 2 to 1MPPS and the pulse width to
500 ns (1/2 the duty cycle).
ATS-6501>pps 1 2 1e-6 5e-7
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