Clear-Com HLI-FBS User Manual
Page 18
Interface module
Description
Four-wire interface
module (HLI-4W2)
This is a two channel device that enables interoperability with the
Eclipse
®
digital matrix system and other four-wire audio sources
such as telephone hybrids, AB-120/-100, PA (Public Address) /
SA (Stage Announce) systems. The module also enables
HelixNet-to-HelixNet connections using four-wire audio ports. Two
four-wire connectors (Ethercon type RJ45 socket) are provided
with the following pin out:
Pin
Function
1
RS-422 data TX+
2
RS-422 data TX-
3
Audio send +
4
Audio receive +
5
Audio receive -
6
Audio send -
7
RS-422 data RX+
8
RS-422 data RX-
Table 2-14: four-wire interface module pin out
Ethernet interface
module (HLI-ET2)
Enables linking of Main Stations, and connection of Remote
Stations and Speaker Stations via Ethernet. Contains Two 10/100
Mbps RJ45 EtherCON ports.
Pin
Name
Function
1
TX+
Transmit Data+
2
TX-
Transmit Data-
3
RX+
Receive Data+
4
n/c
Not connected
5
n/c
Not connected
6
RX-
Receive Data-
7
n/c
Not connected
8
n/c
Not connected
Table 2-15: Ethernet interface module pin out
Warning: Both ports are configured to bridge traffic
from one port to the other in order to work in a daisy-
chained configuration. Spanning Tree Protocol is not
enabled on these ports, therefore do not connect
them both to the same network.
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HelixNet Partyline User Guide