Soundcraft SI series USER GUIDE

SOUNDCRAFT
A Division of Harman International Industries Ltd
CRANBORNE HOUSE
CRANBORNE ROAD
POTTERS BAR
HERTS EN6 3JN
UK
Si Series Option Slot &Card User Guide
Contents
Version:..............................................................................................................................................................................	1
Supported Cards: ................................................................................................................................................................	1
Introduction:.......................................................................................................................................................................	1
Theory of Operation:..........................................................................................................................................................	1
Example Configurations:....................................................................................................................................................	2
Card Switch Settings: .........................................................................................................................................................	3
Si Series Optical MADI Card.............................................................................................................................................	4
Si Series AES Cards...........................................................................................................................................................	5
Version:
V1.1
Supported Cards:
OPTICAL MADI
AES

Introduction:

The Si series of consoles feature a versatile 128 channel expansion bus offering 64 discrete additional input sources and 64 additional output patches that may be used in parallel to fan-out to multiple destinations. Routing from the cards to the processing channels and from channels or buses to the option card buses is achieved via the ‘Patching’ functionality; see Si User Guide for details.

Theory of Operation:

Inputs – All of the 64 expansion bus inputs are present at all expansion slot positions, and any card may talk to any bus however only one card may be set to ‘speak’ to any one bus at any one time. For example if you require 64 inputs from a MADI card then no other input cards may be active at the same time; see ‘DIP SWITCH SETTINGS’ for your option cards for details on how to activate / de-activate routing.

Registered Office: Harman International Industries Limited, Cranborne House, Cranborne Road,

Potters Bar, Hertfordshire EN6 3JN. Company Registration 1485558

Example Configurations:

An example of a valid configuration:

64 Channel
Input	< Card #1(AES) INPUTS 1-8 active
Expansion	< Card #2(AES) INPUTS 9-16 active
Bus	< Card #3 (MADI) INPUTS 17-32 active
	< Card #4 (MADI) INPUTS 33-64 active

This configuration uses all four slots found in an Si3 / Si2 but no two cards are trying to speak to the same bus.

NOTE: Si1 has only two option slots but the same principles apply.

An example of an invalid configuration:

64 Channel
Input
Expansion	< Card #1(AES) INPUTS 1-8 active
Bus	< Card #2(MADI) INPUTS 1-64 active

In this example there is a clash between the two cards as both are trying to ‘speak’ to buses 1-8 and the conflict must be resolved by resetting of the routing dip switches on one or other of the cards.

Outputs – The operation of the outputs is slightly easier to understand; in this case whilst only one audio source on the console may feed any one channel of the output bus any or all of the cards may ‘listen’ to what is being routed to the output bus. The DIP switches may still be used to limit or choose which signals the card uses in the event you do not wish all cards to re-transmit all channels.