ASTi RIU Specifications

Audio Inputs (per channel)
Input Impedance:	> 10 kOhm, Balanced
Input Level:	+/- 2.25V peak max
Input Gain:	User configured 0-60 dB
Audio Outputs (per channel)
Output Impedance:	Balanced
Output Level:	+/- 2.25V peak max
Output Power:	1W RMS into 8 Ohm bridged load, 250mW into 8 Ohm single ended
Digital Inputs
Quantity:	One per audio channel
Configuration:	2 pins each audio connector (ground and sense pin)
Digital Outputs
Quantity:	One per audio channel
Configuration:	Opto-Isolated, 120mA, 2 pins on each audio connector
Serial Ports
Quantity:	Two
Type:	RS-422
Connection:	Standard RJ12 Jack (6 pin)
TDM Ring
Connection:	Standard RJ45 Jacks (8 pin)
Mechanical
Approximate Size:	5.5"W x 1.5"H x 7.5"D
Mounting:	Desktop, 19" rackmount kit available
General
Power:	+5VDC, 1.1A max, fuse protected (plug-in AC/DC converter supplied with each unit)
Audio Connection:	9 pin female sub-min "D" (1 audio input/output and 1 digital input/output each connector)
TDM Ring:	Maximums - 300 ft. length, 14 RIUs/ring, 24 operators/ring
TDM Cabling:	Standard 4 pair, Category 5 twisted pair network cable