Rev 2.2
2.3 Optional X1 power connections
For a 4-unit C1 Mono configuration, connect the C1.d to a X1unit using the CH Power Link cable provided with the X1unit.
For a 5-unit C1 Mono configuration, connect the Left and Right C1.m to two X1 units using the CH Power Link cables provided with
the X1units.
For a 6-unit C1 Mono configuration, connect the Left and Right C1.m to two X1 units and connect the C1.d to a third X1unit using
the CH Power Link cables provided with the X1units.
2.4 Mains connections
Make sure that every mains power switch at the back of the units is in the OFF position prior to connecting any CH Power Link
cables.
Double check that the mains voltage selector at the back of all units is showing the mains voltage of your area.
Connect a mains power cord to every unit. If X1 units are used, both the X1 and the C1 Mono units need to be connected to the
mains electricity.
2.5 Power up the C1 Mono
Once all the above connections have been made, turn on all the units (C1.d, C1.m and optional X1 units) by switching on the mains
power switch at the back of each unit. All the units enter Standby (the front panel red LED of every unit should be lit).
Get the C1 Mono out of Standby by either pushing the C1.d front panel button (short push) using the infrared remote control or
using CH Control app installed on an Android tablet (feature available if the C1.d is connected to an Ethernet router).
3 Firmware update
The latest C1 Mono firmware can be downloaded from the CH Precision website – www.ch-precision.com. It is delivered as a Zip file
containing nine files. The Zip file needs to be decompressed and the extracted nine files copied to the root of the provided USB key.
The C1 Mono three units must be updated together to ensure that communication between the units remains coherent. The three
units can be updated in any order, there is no specific requirements in regards to which unit gets updated first, second and third.
The C1.d unit can be updated either through the normal firmware update procedure or the Emergency firmware update procedure
as described in chapter 5 of the C1 user manual.
The C1.m units can only be updated through the Emergency firmware update procedure. The push button located next to the C1.m
USB connector is used to perform the Emergency firmware update procedure. First, make sure the power switch in the back of each
C1.m units is in the off position and any X1 units connected to the C1.m units are completely powered off by switching the rocker
switch to the off position. Insert the USB key with the firmware into the USB slot of the first C1.m unit. While pushing in and
holding the small black button located next to the C1.m USB connector, flip the power switch to the on position. After a few
moments, a message will appear on the front panel of the C1.m units as the firmware update procedure begins. When the
procedure completes successfully, the unit is placed into Standby mode. Remove the USB key from the first C1.m and repeat this
procedure for the second C1.m unit.
