Philip Pemberton <philpem(a)dsl.pipex.com> wrote: National Instruments Corp. sells a GPIB controller (the NAT9914) which is compatible with the NEC 7210. The reference manual (370875A-01, 320744B-0), June 1995 is available at: http://www.ni.com/pdf/manuals/370875a.pdf NI also makes another controller, the NAT9914 which has two modes of operation: (a) TI 9914 and (b) NEC 7210. The manual of the NAT9914 contains full descriptions of both the 9914 and 7210 modes. The NAT9914 Reference Manual (370876A-01, 320775-01), June 1995 is available at: http://www.ni.com/pdf/manuals/370876a.pdf **vp