Spectracom SecureSync - Page 433

IRIG In/Out, Fiber Opt. [1204-27]: Output Specifications
Signal: IRIG A, B, E, G or NASA-36, (DCLS only, unmodulated)
Operating Wavelength: 820/850 nm
Optical Power: -15dBm average into 50/125 fiber
Fiber Optic Compatibility: 50/125μm, 62.5/125μm multi-mode cable
Optical Connector: ST
Accuracy: see "IRIG Output Accuracy Specifications" on page558
Number of Cards: Up to 6
Ordering Information: 1204-27, IRIG module, Fiber Optic ST Connector
Figure 5-41: Model 1204-27 option card rear plate
Supported IRIG Formats
The IRIG option cards models 1204-05 and -27 support IRIG input and output formats A, B, and
G (DCLS and AM). Additionally, the cards support inputs with frequency/resolution values of
no carrier/index count interval, 1kHz/1ms, 10kHz/0.1ms, and 100kHz/10ms, as well as
IRIG input coded expressions of the fields BCD
TOY
, CF, SBS, and BCD
YEAR
.
The IRIG inputs support the following coded expression combinations for BCD
TOY
, CF, SBS,
and BCD
YEAR
fields:
0 – BCD
TOY
, CF, SBS
1 – BCD
TOY
, CF
2 – BCD
TOY
3 – BCD
TOY
, SBS
4 – BCD
TOY
, BCD
YEAR
, CF, SBS
5 – BCD
TOY
, BCD
YEAR
, CF
The cards support synchronization with the following analog and DCLS IRIG input formats:
SecureSync User Reference Guide 417
APPENDIX