Clear-Com®
Tempest®2400 2 -Channel Wireless Intercom System 31
4-Wire (Matrix) Intercom Interface
4-Wire intercom systems use two pairs of wires to carry one full duplex channel of intercom audio - one pair for send and
the second pair for receive. In addi on to intercom audio, most systems have separate data lines that carry system data
from the matrix to the remote devices. The Tempest 4-Wire connec on is an audio-only interface to 4-Wire systems. Data
can be present on the input cable but no data is u lized in the Tempest BaseSta on.
Steps to Con gure a 4-Wire Intercom Connec on
• Select 4-Wire connec on for the appropriate channels.
• Make the physical connec ons with RJ-45s, to the Tempest BaseSta on and the 4-Wire system.
• Con gure the 4-Wire system to recognize the Tempest Wireless system.
• Adjust IN/OUT volume levels between the Tempest Wireless System and the 4-Wire system as needed.
Connect the 4-Wire intercom system to the desired channel RJ-45 jack on the rear panel of the Tempest BaseSta on. Select
the 4-Wire se ng as described in “Wired Intercom Con gura on Controls.” That is all that is necessary for Tempest to be
ready to communicate with the 4-Wire system. Perform any necessary con gura on for the 4-Wire intercom System and
the communica on link should be complete.
The top RJ-45 jack is for Channel A and the bo om RJ-45 jack is for Channel B.
You may choose to adjust the IN/OUT levels on the front of the BaseSta on if the volume level between the systems is not
acceptable.
Wiring schemes vary and it is important to ensure that the cable is wired correctly for proper system opera on. Tempest
u lizes RJ-45 jacks for 4-Wire connec on to the BaseSta on. Only two pairs of wires are u lized - one to send audio and
one to receive audio. A standard CAT-5 patch cable can be used to connect between the matrix and the Tempest system.
Tempest 4-Wire / RJ-45 Connec on
Pin # Use
1 No Connec on
2 No Connec on
3 Audio Output (+)
4 Audio Input (+)
5 Audio Input(-)
6 Audio Output (-)
7 No Connec on
8 No Connec on
RJ-45 Jacks
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