The EXP1 Expander for HAL1 from Rane adds 16 in x 16 out digital (8 more RAD ports) to the HAL1 multiprocessor. You can use up to 8 digital remotes or RADs in any combination and chain up to 4 EXP1 units to a HAL1 for 80 in x 48 out.
 Specifications
 - Ports
 - Expansion Bus
 - Audio Channels: 64 in x 32 out of HAL1 (maximum, Plus control channel)
 - Units: 4 (maximum, Daisy-chain with FireWire cable included in the EXP box)
 - Type/Connector/Cable: IEEE 1394a, 6-pin (Screw locks on HAL and EXP units, sold separately)
 - Maximum Cable Length: 15.0' (4.5 m) (Maximum standard IEEE 1394a cable length limit
 - Included Cable Length: 3.0' (0.9 m) Supplied cable is not a locking type
 - RAD / DR
 - No of ports: 8 (RJ-45 connectors)
 - RAD Audio Channels: 16 in x 16 out (Each port 2 in x 2 out, plus control channel, 24-bit, 48 kHz)
 - RAD Cable Length (maximum): 500' (152.4 m) Shielded CAT5e cable or better
 - DR Cable Length (maximum): 1000' (304.8 m) Shielded CAT5e cable or better
 - Maximum Power: 24 VDC @ 100 mA (Each port) 1
 - Wiring: Class 2 (All rear panel terminals)
 - Power Requirement: 100 to 240 VAC, 50/60 Hz, 30 W maximum
 - Regulations
 - Safety
 - NRTL (USA): UL 60065 CCSAUS (CSA file #247105)
 - CSA (Canada): CAN/CSA 60065 CCSAUS (CSA file #247105)
 - EU Directive 2006/95/EC: EN 60065 CB Certificate (Nemko)
 - EMC
 - FCC: Part 15B Class B Device
 - EU Directive 2004/108/EC: EN 55103-1, EN 55103-2 Environment E2
 - Dimensions: 1U, 1.75 x 19.00 x 8.25"(4.44 x 48.26 x 20.95 cm)
 - Weight: 8.0 lb (3.6 kg)