Meinberg PZF510 - Manual (Page 12)

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PAR. COM1
The parameter values of serial channel COM1 are selected in this submenu.These
settings are totally independant of COM0, the values allowed are the same as before:
Baud rate: 600, 1200, 2400, 4800, 9600 Baud
Framing:
7O2, 7N2, 7E1, 7E2, 8N1, 8N2, 8E1
SER.MODE
The mode of operation of the serial ports is selected in this submenu. After pressing
the 'Set'-buttton this text is displayed:
0 : x 1 : x
The following settings can be made for each COM-port instead of the 'x' behind the
colons:
'S' Time telegram per second
'M' Telegram per minute
'R' Telegram on request (after sending an ASCII '?', 3F hex)
OSZ.ADJ.
The basic model of the PZF510 includes a voltage controlled temperature compensated
oszillator (VCTCXO, VCOCXO optional). Its nominal frequency of 10MHz is adjusted
by using two digital-to-analog converters (DACs). One of them is responsible for the
coarse tuning and the other one for the fine adjustment of the oszillator. The value for the
coarse-DAC is settable in the range of 0 to 4095 in this menu.
This value should only be changed by specialized personnel of company Mein-
berg and not by the user!
DAC CLR
The value of the fine DAC is displayed in this submenu. If the 'Set'-button is pressed
for approximately two seconds, the DAC is set to its mid-scale value and the diffe-
rence to its last value is added to the coarse DAC proportional.
This process is released automatically if the value of the fine DAC exceeds its
limits (0...4095). Therefore the setting of the value to mid-scale by hand is
reserved for service purposes only.
SER. No.
The eight digit serial number of the PZF510 is displayed. If there is any malfunction of
the clock this number may be helpful to eliminate possible defects.