Diagnostic tools#

Menu navigation

Menu:: SYSt
Item:: c0
Values:: 1, 2, 3, 4, 5, 6, 7, 8

Diagnotic tools are set of specialized features and tools that allow you to monitor clock’s functions.

You can choose from values:

Value(s)	Description
1* (default value)	Display test
2*	Display of active alarms
3*	Display of internal temperature
4*	Display of test results
5*	Display of calibration deviation
6*	Passive DCF diagnostic menu
7*	Display of line quality diagnostics
8*	GPS diagnostic menu

All values have accessible submenu.

Display Test Submenu#

After entering this item, all segments of the display will light up.

../../_images/display-test-4-digits-dark.svg

../../_images/display-test-6-digits-dark.svg

Active Alarms Submenu#

Value(s)	Description
AL:--	If any alarm is not active
AL: `xx`	`xx` represents active alarm bit:
	0	Synchronization lost in last one hour
	6	Device restart
	7	NMS communication error
	8	Time zone error (season server)
	9	NMS authentication error
	33*	Empty calibration value (not calibrated)
	34*	Synchronization timeout
	35*	Not tested (test not passed)
	36*	SSL certificates not present
	39*	Hardware error – some module or peripheral is not present
	To browse between active bits, use >> or PB2. Alarm bits with * are indicated by state LED.

Internal Temperature Submenu#

Value(s)	Description
dd°C	dd represents internal temperature in °C Example: 25°C

Test Results Submenu#

Value(s)	Description
PASS	Tested in production with pass result
FAIL	Tested in production with failed result
Not	Not tested in production

Calibration Deviation Submenu#

Value(s)	Description
-- --	Calibration deviation greater than 1000 ppm
0---	Calibration deviation greater than 100 ppm
--.--	Calibration deviation less than 100 ppm

Negative deviation is indicated by a lit dot at the first digit.

Currently running calibration is indicated by a flashing decimal point.

Passive DCF diagnostic menu#

xx:yz – display during the minute, i.e. when receiving bits

Value(s)

Description

xx

Number of bits received in the current minute, ideally the counter corresponds to the current seconds value (range 0–58)

y

Value of the last received bit (value 0 or 1)

z

The number of consecutive telegrams received with time that were decoded without error

Range 0–9, value greater than 9 is then displayed with a decimal point, i.e. 9.

At one full minute (or if there is a pause between incoming bits of approx. 2 seconds), i.e. it is assumed that the whole telegram is received, a screen is displayed which shows the result of the telegram processing:

Value(s)	Description
`--:-z`	Indicates successful processing of the DCF telegram, when `z` indicates the current value of the counter of consecutive received telegrams
Er:dd	Value `dd` corresponds to the possible states listed bellow:
	`0x01`	incorrect number of received bits
	`0x02`	missing start bit for the beginning of the telegram
	`0x04`	missing start bit for time reception
	`0x08`	parity error when decoding the minutes value
	`0x10`	parity error when decoding the hours value
	`0x20`	parity error in date decoding
	`0x40`	invalid decoded time range
	`0x80`	invalid decoded date range

Line quality diagnostics submenu#

The individual parameters are displayed as submenu items. You can browse between individual parameters by pressing the >> or PB2.

Value(s)	Description
Sc	detected synchronization signal source type submenu
	Sc:–	the synchronization source is not yet identified when auto is selected
	Sc: `xx`	value `xx` indicates the type of the identified link, the displayed value corresponds to the description of the SYNC menu item o2 (Type of synchronization)
u	detected synchronization signal quality submenu
	u—	the synchronisation signal is not yet correctly detected
	u `xxx`	value `xxx` corresponds to the percentage of the synchronization signal processing quality
Er	number of synchronization signal processing errors submenu
	Er: `xx`	value `xx` in range 0–99
	Er:99.	counter value is greater than 99
t	countdown of the time limit in seconds for restarting the synchronization signal detection process submenu
	t `xxx`	value `xxx` in range 0–999
	t999.	counter value is greater than 999
	With successful signal processing, the countdown never reaches zero
St	synchronization signal processing status submenu
	St: `xx`	value `xx` corresponds to the possible states:
		0	unknown
		1	line detected
		2	line frame detected
		3	line frame checked
		4	line time detected
		5	time zone detected

GPS Diagnostic Submenu#

Value(s)	Description
St	GPS status
	EE	GPS module error. Not present or not communicating.
	-	GPS not detected
	2d	2D Fix – GPS detected in 2D mode
	3d	3D Fix – GPS detected in 3D mode
Su	Number of satellites used to calculate position
SA	Number of available satellites
PP	Position Determination Accuracy (PDOP)
	HI	Highest PDOP < 1.0
	1–2	High
	2–5	Good
	5–10	Sufficient
	10–20	Low
	LO	Very Low PDOP > 20