One terminal (video, hardcopy, or graphics) is necessary as a console for a system to function. Total terminals should not exceed one plus additional number of serial lines selected in Step 9. All keyboards and most terminals are 120 V. Refer to Table 1.4 for non-120 V alternate-language keyboards and terminals. LA100 -BA Hardcopy terminal, 120 V Hardcopy I/O terminals recommended as Alpha Server 4100 5/466 Hardcopy terminal, 240 V console terminals. LAl20-DA Hardcopy terminal, 120/240 V VT220-D2 B and W video terminal, 120 V One keyboard is required for each video Alpha Server 4100 5/466 B and W video terminal, 240 V terminal ordered. VT22K-AA US standard keyboard VT22K-BA US WP keyboard See Table 1.4 for non-US keyboards. VT240 -A2 B and W graphics terminal, 120 V One keyboard required for each graphics Alpha Server 4100 5/466 B and W graphics terminal, 240 V terminal ordered. VT241-AA Color graphics terminal, 120 V Alpha Server 4100 5/466 US standard keyboard See Table 1 4 for non-US models and' Alpha Server 4100 5/466 US WP keyboard keyboards. Alpha Server 4100 5/466 250-ch/s dot-matrix printer, Hardcopy output-only printers are not 120 V suitable as console terminals. LA75P-CA 250-ch/s dot-matrix printer, See Table 1.4 for non-US models. (See 120 V, parallel model Alpha Server 4100 5/466 25 ch/s LQP printer, - page 6.15 for LA75 non-US models). 120 V LQPX3-FT Bidirectional forms tractor for LQP03 L Alpha Server 4100 5/466 Single tray sheetfeeder for - LQP03 LA210-AA 240-ch/s dot-matrix printer, 120 V Alpha Server 4100 5/466 Bidirectional forms tractor for LA210 Alpha Server 4100 5/466 Single-tray sheetfeeder for LA210, 8.5 by 11 LA21X-SH Single-tray sheetfeeder for LA210, A4 Alpha Server 4100 5/466 8-pp/min laser printer, 100/120 V LNO3-A3 8-pp/min laser printer, 220/240 V