Rane RAD6 All RAD Specifications are included in the HAL All Specifications D - Page 6

HAL Hardware The HAL1x Expansion Bus The HAL1x Expansion Bus supports up to 32 daisy-chained • For 256 output zones, daisy-chain 32 EXP3x Expanders. Expanders in any combination. The Expansion Bus requires • For 384 mic/line inputs, daisy-chain 32 EXP5x Expanders. shielded CAT 5e (or better) cable with RJ-45 connectors. Each Expansion Bus cable can be 100 meters long (300 feet). The bus supports 512 channels in and 512 out, although This permits spreading Expanders across different locations or designers need not worry about wiring channels along the bus - equipment rooms. Yet only a single HAL1x is required at the this is automatically done within Halogen software. The Resourc- head-end of the daisy-chain. Star topologies are not supported es window in Halogen displays the number of channels in use and - don't use Ethernet switches, they won't work. And since the updates as you draw the audio wiring. Latency hops on the bus EXP3x & EXP5x contain their own DSP, no DSP resources in are 750 nanoseconds per hop. Thus, daisy-chaining 32 Expand- the HAL1x device are used; thus adding these devices adds DSP ers provides a maximum latency of 22.4 microseconds. See the resources to the HAL1x System. Latency graphic below to add up the latency of any given path Gigabit Ethernet Media Converts are supported. Thus, using through the HAL1x, EXPs, RADs, the DSPs and converters. multimode fiber, one can separate Expanders up to 2 kilometers Thirty-two Expanders maximum in any order can be daisy- (1.2 miles). Singlemode fiber distance goes up to 12 km (7.5 chained. For example, 16 EXP3x and 16 EXP5x Expanders daisy- miles). The Expansion Bus is Ethernet Layer 1 only - there chained, provides 128 outputs (8 out times 16), plus 192 mic/ are no MAC and no IP addresses involved, therefore dedicated line/line-plus inputs (12 in times 16). unmanaged media converters must be used. Some examples max out the Expansion Bus: • If you need 256 RADs, daisy-chain 32 EXP1x DSP Core 354.8 µs HAL1x 1024 x 1024 Router Expanders. This is 8 RAD 512 x 512 ports times 32 Expanders, 8 EXPANSION BUS 62.4 µs x 32 = 256 RADs. This still RAD Inputs 445.2 µs RAD Outputs 499.2 µs Analog Mic/Line Inputs 833.5 µs Analog Line Outputs 624.6 µs leaves 4 RAD ports avail- able on the HAL1x. CAT 5 EXP1x EXPANSION BUS 730 ns / hop RAD Inputs to Exp. Bus 466 µs RAD Outputs from Exp. Bus 520 µs CAT 5 EXPANSION BUS 730 ns / hop CAT 5 EXPANSION BUS 730 ns / hop EXP2x EXP3x RAD Inputs to Exp. Bus 466 µs Sample Rate Converter average 1 ms RAD Outputs from Exp. Bus 520 µs Network Interface Con gurable 200 µs - 5 ms Analog Outputs from Exp. Bus 793 µs CAT 5 EXPANSION BUS 730 ns / hop EXP5x Analog Inputs to Exp. Bus 758 µs CAT 5 EXPANSION BUS 730 ns / hop EXP7x Acoustic Echo Cancelling 20 ms Data Sheet - 6 Latency