Sonifex S2 - Input Channels; S2-CML Mic;Line Input Channel

S2 User Handbook
13
If your equipment has remote facilities for “Play”, “Stop”, “Re-Cue”, it will be necessary to
use both start and stop remotes. In this case you will need a momentary start. It should be
noted that pins 2 & 5 on the input modules remote connector is common to start and stop
and should be connected to the common pins on your equipments remote connector. Pins
1 & 4 on the remote should be connected to the “Play” pins on your equipment, and pins 3 &
6 should be connected to the “Stop” pins. Sometimes it may be useful to connect the mixer
stop remote to the “Re-Cue” pin.
Adding Telco Channels
When adding a Telco channel to the mixer there are certain requirements that need to be
met for the correct operation of the cleanfeed busses. Depending on whether you have 1,
2 or no telco channels tted, you may have to alter the cleanfeed bus termination on the
digital PGM and AUD Output channels. If the console is supplied without Telco channels
then both cleanfeed mix busses will need to be terminated. With one Telco channel, only the
unused cleanfeed bus will require termination. With two Telco channels no termination is
required. Please refer to that section of the handbook for further info.
The jumpers J11 and J12 on the Telco channel determine which of the two true cleanfeed
busses the channel uses. There can only be a maximum of two telco channels in each mixer
and they must not share a cleanfeed bus. If you have only one telco channel, the jumpers
are tted over pins 1 & 2 of J11, using cleanfeed bus 1. If a second telco channel is present in
the mixer, then this second channel will have the jumpers tted over pins 2 & 3 of J12, using
cleanfeed bus 2 only.
Removing & Replacing Channels
When installing the mixer it may be necessary to change certain characteristics of a channel
to suit your specic needs, e.g. jumper settings, internal gain pots, etc. To do this the channel
must be removed from the chassis to gain access to the jumpers and pots. Particular care
must be taken when performing this procedure.
To remove a channel, rst disconnect any attached cables from the rear of the channel, and
remove the two screws from the front panel of the channel. The channel should now be
lifted slightly from the chassis with the aid of springs situated at the two xing points, with
enough room to grab both ends of the channel, so that you can carefully lift it from the
chassis. Be careful not to lay the channel across the mixer, as the underside of the channel
PCB may cause scratching.
Once the necessary changes have been made, ensure that the main bus cable is still rmly
attached and carefully position the channel directly above the space where it was removed
from, holding it at a tilt, so that the fader end of the mixer will make contact with the
chassis rst. Slowly lower it down into the mixer, making sure that the main bus cable is
formed correctly and the slack does not get trapped beneath the channel. Once the fader
end has made contact, continue lowering the rear end of the channel down until that also
makes contact, ensuring that it is ush with the channels beside it. Replace the screws, and
reattach the cables to the rear of the channel.
INSTALLATION NOTES
2
INSTALLATION NOTES