Microsemi SyncSystem 4380A - 2.048 Mhz Module (4396 A); 2.048 Mhz Module (4397 A); Time Interval Counter (4393 A); IRIG Input Card (4383 A)

DOC 4380A
4380A O & M Manual
80
098-00723-000– Jul 2017 Revision 4.0 SyncSystem 4380A O&M Manual
A.16 2.048MHz Module (4396A)
This module provides four 2.048MHz outputs. The module also monitors each output for levels below
approximately 10 dBm, after which an alarm is raised.
Characteristic
Description
Number of outputs
Four
Output connectors
BNC(F)
Impedance
75 Ω
Signal
Complies with ITU-T Rec. G.703 paragraph 13
Time Code
None, frequency output only
A.17 2.048MHz Module (4397A)
This module provides four 2.048MHz outputs. The module also monitors each output for levels below
approximately 10 dBm, after which an alarm is raised.
Characteristic
Description
Number of outputs
Four
Output connectors
BNC(F)
Impedance
75 Ω
Signal
Complies with ITU-T Rec. G.703 paragraph 9
Time Code
HDB3.PCM31, all zeros except time slot 16, which is all ones
A.18 Time Interval Counter (4393A)
Characteristic
Description
Number of inputs
Four
Input connectors
BNC(F)
Impedance
50 Ω
Input Voltage (50 Ω)
5 Vpk
Minimum Input Pulse Width
10 µs
Maximum Input Pulse Width
500 ms
Resolution
< ±50 ps
Accuracy
< ±500 ps to internal 1 PPS across all inputs. Individual inputs can be
calibrated using a calibrated cable delay. Contact factory for details.
A.19 IRIG Input Card (4383A)
Characteristic
Description
Number of inputs
Four
Input connectors
BNC(F)
Inputs
DC IRIG – Ports 1 and 2, AM IRIG Ports 3 and 4
Impedance
50 Ω
DCLS Input Voltage (50 Ω)
> 2Vpk and < 5Vpk.
AM Input Voltage (50 Ω)
> 600mV pk-pk and < 6.0Vpk-pk.
Time Codes
B000 to B007 and B120 to B127
AM IRIG Ratio
2:1 to 4:1, Nominal 3:1