Maximum serial lines on system is Alpha Server 300 4/266. The Base Hardware System (Step 1) includes 9 serial lines. This leaves a maximum of 8 additional asynchronous serial lines to choose as options. Alpha Server 300 4/266 8 serial lines Choose only one. DHV11 is not currently ? CK-DHV11 -AB Cabinet kit with full modem supported on RT-11, CTS-300, or control, RS232 signalling MicroPower/Pascal-RT. supporting 8 25-pin connections on the bulkhead. ? DHV11-M 8 serial lines Choose up to two if no other ? CK-DHV11 -VB Cabinet kit with no modern asynchronous options are selected. DHV11 control, RS232 signalling is not currently supported on RT 11, - supporting 8 remote 25-pin CTS 300, or MicroPower/Pascal RT. - - connections. ? DHV11-M 2 serial lines Choose up to two if no other ? CK-DHV11 -WB Cabinet kit with no modem asynchronous options are selected. control,Alpha Server 300 4/266signalling DHV11 is not currently supported on supporting 8 remote MMJ RT11, CTS-300, or MicroPower/Pascal-RT. DECconnect connections. DZQ11-M 4 serial lines Choose up to two of either one if no other ? CK-DZQ11-DB Cabinet kit with full modern asynchronous options are selected. control, RS232 signalling supporting 4 25-pin connections on the bulkhead. ? Alpha Server 300 4/266 M - 4 serial lines ? CK DLVJ1 LB Cabinet kit - -