Spectracom SecureSync User Reference Manual page 355

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.
5.4.2.1 IRIG In/Out, BNC [1204-05]: Input Specifications
5.4.2.2 IRIG In/Out, BNC [1204-05]: Output Specifications
Figure 5-26:
CHAPTER •
5 SecureSync User Reference Guide Rev. 18
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
Output Signal : IRIG A, B, G, E or NASA-36, amplitude modulated sine wave (AM), 0.5V to
6V into 50 Ω; or pulse-width-coded (DCLS). User-selectable.
p-p
AM Carrier : IRIG B 1000 Hz, IRIG A and G 100 or 100
AM Signal Level : 500 mV to 10 V
DCLS Signal Level : >10 kΩ TTL
Connector : AM and DCLS: BNC female
Accuracy : see "IRIG Output Accuracy Specifications" on page 499
Number of Cards : Up to 6
Ordering Information : 1204-05, IRIG module, BNC Connector
Model 1204-05 option card rear plate
(modulated 2:1 to 6:1); 50 Ω load
p-p
[high Z]; (modulated 2:1 to 6:1).
p-p
5.4 Time Code Option Cards
339