Technical data

ASTi DACS: Operation & Maintenance Manual (Version 4, Rev. B.1) www.asti-usa.com
68 Copyright © 1999-2006 Advanced Simulation Technology inc.
TDM Controller Interface
Connector Type: Two RJ45 connectors
Cable Interface: Standard category 5 UTP network cable
Remote Interface Unit
Power Requirements
Version 4.1:
The RIU uses less than 200mA of current at 5V. A power cord with a built in AC/DC converter is
supplied with each RIU. The converter will draw less than 100 mA at 120V.
Mechanical Layout
The RIU enclosure measures approximately, 1.5” by 5.5“by 7.5”. Connectors are located on both
ends of the unit. Four female DB 9 connectors located on one end provide the audio and digital I/
O interface for either two or four channels depending on the configuration purchased (only the
first two connectors will be present on two channel versions).
The opposite end are connections for power, two serial ports, and TDM ring connections.
A drawing of the RIU is given in Appendix B, “Mechanical Layout”.
No additional mounting hardware is provided with the unit. A 19” rack mount kit which will
accommodate up to three RIUs in 1U of rack space is also available.
Audio Connector Pinout
Figure 10: Audio Connector Pinout Version 4.1 RIUs
TDM Ring Interface
The RIU interfaces to the TDM ring through two RJ-45 connectors located on the end of the RIU
enclosure. RIUs and the TDM controller are interconnected in a ring which begins and terminates
at the controller with standard Category 5, UTP (10BaseT) network cable.
1DC 10-pin male
connector on board
Female, 9-pin, subminiature
'D' connector on front panel
1
2
3
4
5
6
7
8
9
10
Digital Output +
Digital Output –
Audio Out, Hi
Audio Out, Lo
Digital in +
Digital In – (I/O GND)
Audio In, Hi
Audio In, Lo
Signal Ground
I/O Ground
1
6
2
7
3
8
4
9
5
n/c