Solid State Logic C100HDSS Installation Manual Download

Page: 21 / 64

Remote I/O Rack (RIO)

All console audio input and output signals are provided by separate input/output racks. These racks are referred to as

’

RIOs

’.

The RIO is a 7U high 344mm deep 19” rack unit. Each RIO requires its own mains power supply and fibre optic cable

connection to the Blackrock processor. A maximum of four RIOs can be connected to each C100 system.
All plug-in cards and connectors are accessed via the front of the RIO making it suitable for installation into equipment

racks where space is limited. The unit is cooled from front to back using temperature controlled low-noise fans so space

for ventilation must be provided behind the rack. A standard 600mm rack provides adequate ventilation space.
RIOs can be fitted with one or two removable power supplies. A single PSU unit has sufficient capacity to supply a fully

fitted RIO thus full PSU redundancy can be achieved by fitting two units.
Below the power supplies is space for six plug-in cards. The uppermost slot is always fitted with the RIO Interface Card.

This card is fitted with four fibre MADI interface ports for connection to the Blackrock processor.

Note that although each MADI link has capacity for 64 channels (at 48kHz) the first link is limited to 62 audio channels

because two channels are reserved for sync and status information; the remaining three links can access all 64 channels

of bi-directional audio data. The maximum I/O capacity for a single RIO unit is therefore 254 audio channels.

The interface card is also equipped with 24 channels of general-purpose opto-isolated input and 24 outputs are available

via relay closures. Refer to page 35 for contact ratings.
A sync output connector is included which provides a feed of the system’s Wordclock reference.

I/O Daughter Cards

Below the interface card are five available slots into which a range of input/output cards can be fitted.
Cards are available with the following functions: 24-channel analogue I/O, 64-channel digital I/O – with either fibre or

copper connection – and 12 channel microphone input. Cards can be fitted in any combination. Cards must be installed

starting with slot one, directly below the Interface card, and added in order. See the following page for I/O card details.
Unused slots must be fitted with a blanking panel (supplied) to maintain the correct airflow through the rack.

Fibre Connection

RIO units are connected to the Blackrock processor using duplex fibre optic cabling. The connectors required at each end

are duplex LC type – flat end, not APC.
The fibre interfaces are available in two versions: singlemode and multimode. The fibre specification chosen determines

the maximum distance that the cable can be run without loss of data. Singlemode and multimode interfaces and connectors

are almost identical in appearance but are operationally incompatible – the standards must not be mixed within a system.

Generally, singlemode cables are coloured yellow and multimode cables are coloured orange.
Unless specified otherwise the RIO and Blackrock interface adaptors will be fitted with the multimode version.

Console systems are supplied with one 2m multimode fibre cable for each RIO to Blackrock link. It is the responsibility

of the facility to provide longer or additional fibre cables necessary to connect the Blackrock processor to the RIO units.

Standard

Cable specification

Maximum cable length

Note

Multimode

LC – LC duplex 50/125µ

550m (1,800ft)

Default fitment

Singlemode

LC – LC duplex 9/125µ