Make sure the power switch is set to off (0), Connect the power cord to the unit and plug it, If you are installing vs1100 expansion units, c – Comtrol VS1100 Configuration Guide User Manual

Page 15: Record the serial numbers of the vs1100 units, Table 3. vs1100 model and serial numbers, Optionally, mount the vs1000 into the rack usin, A. attach the l brackets to the vs1100 using the s, B. attach the l brackets into your rack, Installing vs1100 hardware