Local distant, Link control – Omnitron Systems Technology OmniMux 400 User Manual

Page 6

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Omnitron Systems Technology, Inc.

DEMUX-STAR LINK ADDR
BIT 1
BIT 2
BIT 3

POLARITY CONTROL (U Models)

MUX LINK 1

HOST LINKS 0-7

RX

DEMUX-STAR

DEMUX

MUX

STAR

FUNCTION CONTROL

LINK CONTROL

1 2 3 4 5 6 7 8

LOCAL
DISTANT

HOST MASTER

LINK (DB25)

POWER

Figure 1. OmniMux 400 rear view

Power-Up

In order to minimize the possibility of accidental power shut off to the OmniMux 400,
no power switch has been designed into the product. Special care must be taken
when applying power to the OmniMux unit.

WARNING

The OmniMux unit does not have a power switch,

so extra care must be taken in powering the unit.

Always plug the Power Adapter into the back of

the Mux unit first. This is in order to prevent

damage to the Mux unit and to prevent potential

shorts, sparks, and fire hazards.

Verify that the power supply voltage (by reading the label on each power adapter
unit) is consistent with the facility’s line voltage (115/230 Volts), and that the Power
Adapter plug fits in the outlet.

Plug the Power Adapter’s cable connector to the appropriate matching connector
in the back of the OmniMux Unit.

Plug the Power Adapter into the wall outlet. Observe that all LED’s light up for
approximately 0.5 seconds. After 0.5 seconds, all should extinguish except the
yellow power LED; It stays On.

Control Switches

The following figure depicts a rear view of the OmniMux 400. There are two Switch
Banks which control the operation of the OmniMux 400.

Omnitron Systems Technology, Inc.

7

DEMUX-STAR LINK ADDR
BIT 1

BIT 2
BIT 3

POLARITY CONTROL (U Models)

MUX LINK 1

HOST LINKS 0-7

RX

DEMUX-STAR

DEMUX

MUX

STAR

FUNCTION CONTROL

LINK CONTROL

1 2 3 4 5 6 7 8

LOCAL

DISTANT

Switch #

Position

Function

Notes

1

X

Controls UTP Hosts Link Polarity

No affect in model 2701

2

X

Controls UTP Mux Link 1 Polarity

No affect in model 2701

3

X

RX Polarity

Reserved for future applications

4,5

U,U
U,D
D,U
D,D

Star Configuration
Mux Configuration
Demux Configuration
Demux-Star Configuration

6,7,8

X

Demux-Star Link Address

Affect only during Demux-Star Application

Function Control

This is an eight-switch bank which includes the following functions (Figure 2):

Figure 2. Function Control Switch Block

Link Control

Figure 3. Link Control Switch Block

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