Maximum serial lines on system is 25.Alpha Server ES40 6/500 Cluster The Base Hardware System (Step 1) includes 17 serial lines. This leaves a maximum of 8 additional asynchronous serial lines to choose as options. 1 Alpha Server ES40 6/500 Cluster 8 serial lines Choose only one. DHV11 is not currently 1 Alpha Server ES40 6/500 Cluster Cabinet kit with no modem supported on RT-11, CTS-300, or control, RS232 signalling MicroPower/Pascal-RT. supporting 8 remote 25-pin connections III 1 Alpha Server ES40 6/500 Cluster 8 serial lines Choose one if no other asynchronous 1 CK-DHV11-WA Cabinet kit with no modern options are selected. DHV11 is not control, RS423 signalling currently supported on RT-11, Alpha Server ES40 6/500 Cluster supporting 8 remote MMJ or Alpha Server ES40 6/500 Cluster Pascal-RT. DECconnect connections 1 DZQ11-M 4 serial lines Choose either one if no other 1 Alpha Server ES40 6/500 Cluster Cabinet kit with full modem asynchronous options are selected. control, RS232 signalling supporting 4 25-pin connections on the bulkhead 1 OMI -M 4 serial lines 1 Alpha Server ES40 6/500 Cluster Cabinet kit One terminal (video, hardcopy, or graphics) is necessary as a console for a system to function. Total terminals should not exceed 17 plus additional number of serial lines selected in Step 8. All keyboards and most terminals are 120 V. Refer to Alpha Server ES40 6/500 Cluster for non-120-V alternate-language keyboards and terminals.