Extron electronic Program audio output MPS 112CS, Remote connection, MPS Series Installation

Installation, cont’d

Program audio output (MPS 112CS)

Balanced or unbalanced program audio output is available on the MPS 112CS using a 3.5 mm, 5-pole captive screw connector. Refer to the following illustration for proper wiring.

CAUTION

For unbalanced audio output, connect the sleeve(s) to the center ground pin. DO NOT connect the sleeve(s) to the negative (-) contacts.

Tip	LR	AUDIO	Tip	LR	AUDIO
NO Ground Here			Ring
Sleeve(s)			Sleeve(s)
Tip			Tip
NO Ground Here			Ring

Figure 2-9 — 3.5 mm, 5-pole captive screw audio connectors

Do not tin the audio leads before installing into the connector. Tinned wires are not as secure in the connector and could be pulled out.

Remote connection

The cable used to connect the RS-232/Remote port to a computer or control system may need to be modified by removing pins or cutting wires. If unneeded pins are connected, the switcher may hang up.

For RS-232 control, use a control cable with only pins 2, 3, and 5 connected. Otherwise, either cut the wires to the other pins in hard-shelled connectors or remove the unneeded pins from molded plugs. See chapter 5, Programmer’s Guide, for definitions of the SIS commands and details on how

to install and use the control software.

5 1

The RS-232 connector is a 9-pin D female with the following pin designations:

Pin	RS-232 function	Description
1	–	No connection
2	Tx	Transmit data
3	Rx	Receive data
4	–	No connection
5	Gnd	Signal ground
6, 7	–	No connection
8, 9	–	No connection

96

DB9 Pin Locations

Female

The RS-232 protocol is as follows:

•9600 baud

•8 data bits

•1 stop bit

•no parity

•no flow control

2-8 MPS Series • Installation