To connect the HDL300 system with Cisco Telepresence® SX80 CODEC, two custom cables are needed to accommodate the standard 3.5mm jack connector on the HDL300 system's connect module with the standard Euroblock connectors on the Cisco I/O panel.
Creating custom cables
Cable 1: Prepare a 3.5mm jack cable with the three pins positive (+), negative (–) and ground (), wired to an appropriate Euroblock 4-conductor terminal block per the SX80 User Manual microphone inputs. Leave the microphone Mute pin unused.
Cable 2: Prepare a 3.5mm jack cable with the three pins positive (+), negative (–) and ground (), wired to accommodate the SX80 speaker Output Left & Right terminal connections by tying the two negative (–) and two ground () lines together.
On the connect module
On the Cisco CODEC
Make sure you do not connect the microphone Mute on the Euroblock terminal.
Last updated: June 27, 2019