If the photograph is clicked, it grows.

MainFrame 7001; 2 plug-in cards MEMORY: Battery backed-up 100 switch patterns. External Trigger (TTL-compatible, programmable edge, 600ns minimum pulse, rear panel BNC). IEEE-488 bus (GET, *TRG) Trigger Link Manual (front panel) Internal Timer, programmable from 1ms to 99999.999 seconds in 1ms increments. STATUS OUTPUT: Channel Ready (TTL-compatible signal, rear panel BNC). SWITCHING SEQUENCE: Automatic break-before-make. MAINFRAME DIGITAL I/O: 4 open-collector outputs RELAY DRIVE: 700mA max for both card slots. CARD SIZE: 32mm high 114mm wide 272mm long (11 ⁄4 in× 4½ in × 103 ⁄4 in). CARD COMPATIBILITY: Fully compatible with all 7XXX cards. GP-IB AC 100-240V 50VA 89mmH 216mmW 375mmD Net weight 3.4kg No handle No front feet No Rear Frame