Operating Modes; Transparent Mode; Pulse Mode - Siemens SICLOCK PCON Operating Instructions Manual

4.2

Operating modes

4.2.1

Transparent mode

In transparent mode, the input signal is transmitted unchanged to the output. It is
simply transferred to another electrical interface. This mode is always used to
transfer telegrams, DCF77 and IRIG signals.
4.2.2

Pulse mode

In this mode, a pulse with a constant pulse length is emitted at the output. In pulse
mode, it is possible to choose between three triggering methods. Pulse mode is
always used to transmit second and minute pulses
• In the case of automatic triggering triggering always occurs on the first pulse
edge of the input signal, i.e. triggering always occurs on the positive edge of a
high-active pulse and on the negative edge of a low-active pulse. This type of
triggering only functions for pulse widths of less than 300ms, and is therefore
used only in the SICLOCK environment. A pulse with the specified pulse
length is then emitted at all electrical outputs. This pulse can still be inverted
at the output, if required.
Fig. 4-2
Fig. 4-3
®
SICLOCK PCON
Operating Instructions, 04/2012, A2B00056366E-01
Pulse mode with automatic triggering with a high-active input signal
Pulse mode with automatic triggering with a low-active input signal
4-10