Irig In/Out [1204-05, -27] - Spectracom SecureSync 1200 User Reference Manual

APPENDIX
Descriptions of the settings shown in the Status window can be found "IRIG Output: Edit Win
dow" on page 396. For IRIG frequency and output specifications, see "IRIG Standards and Spe
cifications" on page 523.
5.2.5.2

IRIG In/Out [1204-05, -27]

The IRIG Input/Output option card provides SecureSync with one IRIG input and two IRIG out
puts. The IRIG input can be used as the primary SecureSync time and 1PPS reference input for
synchronization. Or, it can also be used in conjunction with other primary references (such as
GNSS and NTP) to synchronize SecureSync. Available with BNC or Fiber Optic ST connectors.
IRIG In/Out, BNC [1204-05]: Input Specifications
Input Signal : IRIG A, B, G or NASA-36;
amplitude modulated sine wave (AM) OR pulse-width-coded (DCLS); user-selectable, with
automatic switching of load on input
AM Carrier : IRIG B 1000 Hz, IRIG A 10 kHz and G 100 kHz
AM Signal Level : 500 mV to 10 V
DCLS Signal Level : TTL; 0.8V max., 2.3V min fail.; >10 kΩ load
Connector : AM and DCLS: BNC female
Accuracy : n/a
Number of Cards : Up to 6
Ordering Information : 1204-05, IRIG module, BNC Connector
400
(modulated 2:1 to 6:1); 50 Ω load
p-p
SecureSync User Reference Guide