Cisco Systems IPMUX-1E operation manual DC Power Supply Connection Terminal Block Connector

DC Power Supply Connection – Terminal Block Connector

Note: Ignore this supplement if the unit is AC-powered.

Certain DC-powered units are equipped with a plastic 3-pin VDC-INpower input connector, located on the unit rear panel. Different variations of the connector are shown in Figure 1. All are functionally identical.

Supplied with such units is a kit including a mating Terminal Block (TB) type connector plug for attaching to your power supply cable.

Connect the wires of your power supply cable to the TB plug, according to the voltage polarity and assembly instructions provided below.

Caution: Prepare all connections to the TB plug before inserting it into the unit’s VDC-IN connector.

ABC

DE

Figure 1. TB DC Input Connectors Types

Appearing on Unit Panels

Preparing and Connecting the Power Supply Cable with the TB Plug

Refer to Figure 2 for assistance.

1.	Strip the insulation of your power supply wires
	according to the dimensions shown.
2.	Place each wire lead into the appropriate TB
	plug terminal according to the voltage polarity
	mapping shown in Figure 4. (If a terminal is
	not already open, loosen its screw).
	Afterwards, tighten close the three terminal

Typical DC Power
Input Connector	20 mm

(on unit panel) 5 mm

Terminal screws

Wire stripping

dimensions

	screws.
3.	Pull a nylon cable tie (supplied) around the
	power supply cable to secure it firmly to the
	TB plug grip, passing the tie through the holes
	on the grip.
4.	Isolate the exposed terminal screws/wire
	leads using a plastic sleeve or insulating tape,
	to prevent the possibility of short-circuit.
5.	Connect the assembled power supply cable to
	the unit by inserting the TB plug into the unit’s
	VDC-INconnector until it snaps into place.

See following page

for wire mapping

Nylon cable tie

TB plug grip

DC power

cable

Mating

TB Connector

Plug

Figure 2. TB Plug Assembly

SUP-220-03/03