OI-715-BP..............8 Channel Back Panel Board for up to 8 OI-715 Monitors
OI-715-BP-2..........Back Panel Board for up to 2 Monitors
OI-715-RB..............Relay Board w/ six 20 Amp Relays in Two Banks (A & B)
OI-08......................½ 19 Rack Mount Frame
OI-428....................8 Amp Transformer for AC Power
OI-409-1.25A.........FUSE 1.25A 250V Slow Blow