Rear Panel Connectors - Wohler HDM-320-4K-TT User Manual

3. SDI 3 In: This is the third 3G/HD/SD-SDI video signal input. This
connection is compliant with SMPTE 424M, SMPTE 259M, SMPTE292M/ITU-R
BT601. It can be viewed using the SDI3 selection on the Input button menu.
4. SDI 4 In: This is the fourth 3G/HD/SD-SDI video signal input. This
connection is compliant with SMPTE 424M, SMPTE 259M, SMPTE292M/ITU-R
BT601. It can be viewed using the SDI4 selection on the Input button menu.
5. RS-485 In/Out: These RJ-45 jacks are used for dynamic Tally/IMD controls.
Two jacks are provided for in & out daisy chain arrangements. They are
wired identically. Refer to Figure 2-4 below for the pinout and to Table 2-3
for terminal connections. These connections are also used for system
software upgrades. Either CAT5 or CAT6 cables may be used for these jacks.
6. Ethernet: The 10/100M Ethernet connector is used to connect with a
computer to modify the display settings remotely. CAT5 network cables are
recommended for medium distances. CAT6 twisted pair shielded cables are
recommended for longer distances.
7. DC Power Connector: 14 to 19VDC at 3A power supply connects to this
XLR connector to power the monitor when AC power is not available.
8. Power Switch: This switch removes all power from the product. Normally,
since this switch is on the rear panel, it is left in the 1 (On) position and the
front panel Power button is used to start and stop product operation.
9. AC Power Connector: The supplied 100 to 240VAC power cord connects to
this IEC connector.

Rear Panel Connectors

The following figure and table details the connections of the RS-485 connectors on
the rear panel. The table is also silkscreened on the rear panel of the unit for your
convenience.
Figure 2-4: RS-485 I/O Pin-Out
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