CONNECTOR PINOUTS

Input/Output Remote Control Port

 

INPUT

13

1

25

14

 

REMOTE CONTROL

OUTPUT

5,15 VDC

31 5 2 4

Logic Input: Pins 1-24 are inputs 1-24, respec- tively. Pin 25 is ground.

Logic Output: Pins 1-20 are outputs 1-20, respec- tively. Pins 21-25 are ground. Each ground pin should be used with only 4 outputs. For example, outputs 1-4 could be connected to LEDs, which are connected to ground pin 1.

LEDs can be used without series resistors (we have provided series resistors in the circuitry). For best results, LEDs with Vf=2.0 V and If=20 mA should be used. Larger values may be used, but may result in dimmer LEDs. An LED with Vf less than 1.4 V should not be used without additional series resis- tance.

Power Supply Input

The power supply input accepts a 5-pin DIN male connector. Only use the power supply provided by Polycom. Use of other power supplies will void the warranty.

1 Ground; 2 Ground; 3 +5Vdc @ 3 A; 4 -15Vdc @ 0.3 A; 5 +15Vdc @ 1.2 A

Mic/Line Inputs, Line Inputs, Line Outputs

These audio connectors accept a mini (3.5 mm) 3 conductor terminal block (provided). See Note below for manufacturer information.

From left to right the conductors are positive signal, negative signal, and shield ground.

Note The information below lists manufacturer information for the Phoenix connector that is compatible with the parts we use:

Manufacturer: Phoenix Contact

Description: Mini-COMBICON 3-position plug, 3.5 mm pitch

Type Number: MC 1.5/3-ST-3.5 or MC 1,5/3-ST-3,5

Part Number: 1840379

VORTEX EF2241 Reference Manual

52

Technical Support: 800.932.2774

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Polycom EF2241 manual Input/Output Remote Control Port