The incoming input time information may be provided as local time, but System Time may
be configured as UTC time, so internal computations need to be performed. With the
Timescale field set to “Local”, select the name of a previously created Local Clock. The
Time Zone and DST rules, as configured in the Local Clock will be applied to the front
panel time display. Refer to for more information on Local Clocks.
Offset: Provides the ability to account for HAVE QUICK cable delays or other laten-
cies in the HAVE QUICK outputs. The Offset values are entered in nanoseconds
(ns). The available Offset range is –500 to +500 ms.
5.2.5.6 HAVE QUICK In/Out [1204-29]
The HAVE QUICK input/output option card 1204- 29 provides SecureSync with (1)
HAVEQUICK input and (3) HAVE QUICK outputs.
HAVE QUICK In/Out [1204-29]: Specifications
Inputs/Outputs: (1) HAVE QUICK input/(3) HAVE QUICK outputs
Signal Type and Connector: TTL levels (BNC)
Output Load Impedance: 10kΩ
Start of Signal: <10µs after 1PPS output
Programmable phase shift: ±5ns to 500ms with 5ns resolution
Maximum Number of Cards: 6
Ordering Information: 1204-29: HAVE QUICK Input/Output
Figure 5-44: Model 1204-29 option card rear plate
HAVE QUICK Output: Viewing Signal State
To quickly view if a HAVE QUICK Output is enabled or disabled, go to the option card’s
Status Summary panel. For instructions, see: "Viewing an Input/Output Signal State" on
page337.
SecureSync 2400 User Manual 439
APPENDIX