First you need the 100mm x 266mm module... VDA210M HD Dual channel distribution amplifier for HD or SD analogue video with manual control Next choose your frame size and power supplies - from 4U to desk top box... Indigo 4 CoolFlow 4U frame with power supply redundancy and passive front panel for up to 24 Crystal Vision modules Indigo 4SE CoolFlow 4U frame with power supply redundancy and passive front panel fitted with Statesman CPU for up to 24 Crystal Vision modules. Allows Ethernet connection to a PC running Statesman Indigo 2 CoolFlow 2U frame with power supply redundancy and passive front panel for up to 12 Crystal Vision modules Indigo 2AE 2U frame with power supply redundancy and active front panel for up to 12 Crystal Vision modules. Allows Ethernet connection to a PC running Statesman Indigo 2SE CoolFlow 2U frame with power supply redundancy and passive front panel fitted with Statesman CPU for up to 12 Crystal Vision modules. Allows Ethernet connection to a PC running Statesman Indigo 1 1U frame with passive front panel for up to six Crystal Vision modules Indigo 1AE 1U frame with active front panel for up to six Crystal Vision modules. Allows Ethernet connection to a PC running Statesman Indigo 1SE 1U frame with passive front panel fitted with Statesman CPU for up to six Crystal Vision modules. Allows Ethernet connection to a PC running Statesman Indigo 1-DP 1U frame with power supply redundancy and passive front panel for up to six Crystal Vision modules. Includes two fixed PS-80i power supplies Indigo 1AE-DP 1U frame with power supply redundancy and active front panel for up to six Crystal Vision modules. Includes two fixed PS-80i power supplies. Allows Ethernet connection to a PC running Statesman Indigo 1SE-DP 1U frame with power supply redundancy and passive front panel fitted with Statesman CPU for up to six Crystal Vision modules. Includes two fixed PS-80i power supplies. Allows Ethernet connection to a PC running Statesman Indigo DT Desk top box with passive front panel for up to two Crystal Vision modules. Includes fixed power supply Indigo DTAE Desk top box with active front panel for up to two Crystal Vision modules. Includes fixed power supply. Allows Ethernet connection to a PC running Statesman Indigo DTSE Desk top box with passive front panel fitted with Statesman CPU for up to two Crystal Vision modules. Includes fixed power supply. Allows Ethernet connection to a PC running Statesman PSU-160i 160 Watts power supply for 1U, 2U and 4U frames. 1U frames require one PSU-160i (no redundancy). 2U frames require either one PSU-160i (no redundancy) or two PSU-160i if power supply redundancy is required. 4U frames require minimum of two PSU-160i (with compulsory redundancy) or four PSU-160i if the power consumption in the frame exceeds 150W You need a rear module to access your inputs and outputs... RM01 Single slot frame rear module. Allows maximum number of VDA210M HD in frame (24 in 4U, 12 in 2U, six in 1U, two in desk top box). Gives access to two HD or SD analogue outputs per channel RM02 Four slot frame rear module. One rear module used for three VDA210M HD, allowing 18 VDA210M HDin 4U and nine in 2U. Gives access to three HD or SD analogue outputs of the first channel and four of the second RM15 Two slot frame rear module. Allows 12 VDA210M HD in 4U, six in 2U, three in 1U and one in desk top box. Gives access to four HD or SD analogue outputs and an analogue loop-through per channel (NB. rear module loop still available when board removed) RM18 Two slot frame rear module. Allows 12 VDA210M HD in 4U, six in 2U, three in 1U and one in desk top box. Gives access to five HD or SD analogue outputs per channel The VDA210M HD is controlled by board edges switches - therefore you will not require a control panel or PC software.