Clear-Com HLI-FBS User Manual
Page 142
13.6.3
Two-wire connection to an Eclipse or Eclipse-HX system frame
To connect your HelixNet Partyline system to an Eclipse or Eclipse-HX System, using a two-
wire connection:
1)
On the HMS-4X Main Station, configure the Module Settings for the Two-wire
interface module. For the procedure, see 4.6.2 Configuring a Two-wire interface
module.
Note:
Check that the two-wire module is configured for Clear-Com systems (the
default) and run Auto-null. Auto-nulling helps to reduce echo while talking
on a two-wire audio system. You must run auto-null every time you change
the cabling.
2)
Physically connect the HMS-4X Main Station to the CCI-22 dual-channel party-line
interface module.
The CCI-22 may be fitted:
• Directly to an Eclipse or Eclipse-HX System.
• An interface frame (such as the IMF-3 or IMF-102), connected to the
Eclipse matrix.
Tip:
For more information about installing and using the CCI-22, see the CCI-22 Manual, or go to:
Powering the connection:
You must power the connection between the HMS-4X Main Station and the CCI-22
using either a dedicated power supply (such as the PK-7, PS-702, or PS-704), or a
powered Encore Main Station (such as the MS-702 or MS-704).
Tip:
For more information about the PK-7 or PS-70x power supply devices from Clear-Com, see
Connecting the systems:
There are two parallel DB-9M Interface I/O connectors on the CCI-22. The two-wire
module on the HMS-4X Main Station features two 3-pin XLR connectors. For more
information about wiring the connection, see:
• 13.6.2 Quick reference: Two-wire connection to Eclipse.
• The CCI-22 Manual.
3)
Apply nulling to the connected channel on the CCI-22. To null the channel:
a) Insert the accessory earphone into the front-panel Test jack. A test tone, for
all frequencies, is produced every 0.5s.
b) While listening to the test tone, adjust the R (Resistance) control until the tone
is at a minimum.
c) Repeat Step b. for the L (Inductance) and C (Capacitance) controls. These
controls compensate for each component of the line’s impedance, providing
the best possible null.
142
HelixNet Partyline User Guide