Download Megaplex/MAXcess DC Power Supply

Megaplex/MAXcess DC Power Supply Connection –
Circular 3-pin Connectors
DC Power-Input Connectors
DC-powered chassis are equipped with a circular 3-pin (male)
power-input connector marked DC-IN (see Figure 1), located
on the DC power supply module.
Certain DC-powered chassis can also accept +60/+72 VDC
ringer voltages (required by certain modules for voice or
phantom feed applications). These have connectors with
Pin 2 (marked +72V) assigned for this purpose.
+
48V
(or 24V)
0
CHASS
GND
+72V
Ringer-Input Connector
Figure 1. Standard
DC-IN Connector
AC-powered chassis that can accept DC ringer and feed
voltages are also equipped with a circular 3-pin (male)
DC connector marked RINGER-IN (see Figure 2). This
connector is located on the AC power supply module and
enables accepting the DC voltages required by certain
modules for supporting voice or phantom feed applications.
For standard DC connectors
(no ringer voltages):
Figure 2. DC-IN/RINGER-IN
Connector that Accepts
Ringer Voltages
For DC connectors that
accept ringer voltages:
(+) 24/48 VDC (-)
Input
DC Power Supply Wire Voltage Polarity
Supplied with the unit is a compatible (female) cable
connector for attaching to your DC power supply cable.
• If your power supply cable already has a compatible
connector, just verify that the voltage polarity is as required.
• If not, connect the wires of your power supply cable to the
supplied cable connector according to the voltage polarity
mapping shown in Figure 3. Note that the solder side of
the connector is shown.
48V
1
3
(+) 24/48 VDC (-)
Input
Common
Ground (0)
2
1
3
2
(-)
Chassis
(Frame)
Ground
( )
60/72 VDC
(Ringer) Input
(+)
Figure 3. Voltage Polarity Mapping for
Female Cable Connector (solder side)
Caution: Prepare all connections to the cable
connector before inserting it into the unit’s connector.
See Figure 4 for assistance in assembling the connector.
Warning:
• Reversing the wire voltage polarity can cause damage
to the unit!
• Always connect a ground (earth) wire to the connector
Chassis (frame) Ground terminal or alternatively, to
the Grounding Screw provided on the PS module
panel [mandatory for connectors with Pin 2
designated to accept +60/+72 VDC instead of
connection to Chassis (frame) Ground]. Connecting
the unit without a protective ground, or interruption of
the grounding (for example, by using an extension
power cord without a grounding conductor) can cause
harm to the unit or to the equipment connected to it!
Figure 4. Female Cable Connector Assembly
SUP-209-10/01