Paradise Datacom Vision Series Installation And Operating Handbook page 21

Vision Series Installation and Operating Handbook
terminal emulation application or via TCP packets that encapsulate Paradise Universal
Protocol (PUP) commands.
An M&C IP address and subnet mask may be set in the modem. Note that the modem is
not configured for auto-sense of the cable type and consequently either a straight or
crossover (patch) cable may be required, depending on the equipment being connected
(typically a straight cable is required w hen connecting direct to a PC and a crossover cable
is required when connecting to a router or switch).
Station Clock
This connector is a 75 BNC female that accepts a 1-10MHz signal, either a square
wave of >1V p/p (e.g. a G.703 para. 10 `synchronising clock`) or a sinusoid at a pow er
level of 0dBm or greater. An alternative Station Clock signal at RS422 interface levels can
be applied to the Async ESC connector. Either signal can be used by the modem as a
reference for the receive output clock (the Station Clock does not have to be the same
rate as the data as an internal PLL converts between rates). In addition, if the Rx
Clocking is set to use the Station Clock and the Tx Clocking is set to Rx, then the Station
Clock also sources the internally generated Tx Clock (Tx and Rx data rates are
independent). If a 10MHz signal is applied, this signal may also be used in place of the
internal reference for the Tx and Rx IF synthesisers.
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