Rear Panel Features

NOTE: This “Rear Panel Features” section identifies the various ports on the back of
the VNC 325 and defines their function. Do NOT make any network (LAN)
connections until directed in the connection and setup procedures that begin
after this section.
12V DC
3A MAX
POWER
LAN12
OPTICAL
REMOTE
SDI
OUT
SDI
IN
RS-232
OVER LAN
6 7 8543
1 2
Figure 2. VNC 325 Features
NOTE: The VNC 325 uses male connectors for the serial ports (a and b). You may
need an adapter.
a Remote port — Use this male 9-pin port on each VNC 325 to perform low level
configuration of that unit only.
NOTE See “Serial Port Wiring“ on page 16 for the detailed serial port protocol
and to wire this connector.
b RS-232 Over LAN port — Use this male 9-pin port to transmit and receive data across
a network.
NOTE: The RS-232 Over LAN port also connects to the alarm relay in the codec.
The relay energizes whenever a critical alarm condition occurs (see “RS-232
Over LAN Port“ on page 21 to wire the connector and “Filter settings
panel“ on page 60 to set critical alarms).
c Power Connector — Connect the included 12 V power supply between this connector
and a 100 VAC/240 VAC, 50-60 Hz source.
CAUTIONS: • Always use power supplies specified by Extron for the codec. Use
of an unauthorized power supply voids all regulatory compliance
certification and may cause damage to the supply and the unit.
• This unit is intended to be supplied by a Listed Power Unit marked
“Class 2” or “LPS,” rated 12 VDC, 1.0 A minimum. Always
use a power supply supplied by or specified by Extron. Use of an
unauthorized supply voids all regulatory compliance certification and
may cause damage to the supply and the end product.
• Unless otherwise stated, the AC/DC adapters are not suitable for use
in air handling spaces or in wall cavities. The installation must always
be in accordance with the applicable provisions of National Electrical
Code ANSI/NFPA 70, article 75 and the Canadian Electrical Code
part 1, section 16. The power supply shall not be permanently fixed
to a building structure or similar structure.
VN-Matrix 325 Serial Digital Over IP CODEC • Installation and Setup 6