Asynchronous Serial Communications Programmer's Reference Manual (32022-90052)

Appendix A 289

Comparing MPE/iX Systems to MPE V Systems

PAD Support

On MPE V computers, PAD support is provided over the NS X.25

3000/V Link product, which must be purchased and conﬁgured on

systems to which PAD access is required. On MPE/iX systems, PAD

support is provided through the DTC/X.25 Network Access card which

is mounted in the DTC. Access through a private or public PAD is

available through the DTC to any MPE/iX computer on the LAN to

which that DTC is connected (within conﬁgured security limitations).

PAD Programming Considerations

Programmatically, PAD support on MPE/iX is nearly identical to PAD

support on MPE V. The only difference is with the FCONTROL37

intrinsic. On MPE V, the FCONTROL intrinsic has no effect. On

MPE/iX, calling the intrinsic will cause the terminal type setting to be

changed, but will have no impact on how the device actually operates.