HP 3000/37 console
J. David Bryan
jdbryan at acm.org
Tue May 8 12:50:45 CDT 2018
On Tuesday, May 8, 2018 at 0:36, Mike Loewen via cctech wrote:
> Does anyone know if a non-HP terminal will work as the console for
> a HP 3000 Series 37?
Page 3-7 ("Minimum Requirements for Terminals") of the "Series 37 System
Processing Unit Self-Paced Hardware Training Guide" (32450-90001 June 1984)
* The system console must be connected to port 0 on the TIC installed in
slot 1 (channel 1) of the SPU. MPE and DUS expect this configuration.
* The ENQ/ACK handshake capability must be present.
That suggests that it won't.
> The power-on self-test uses ENQ/ACK to speed sense, but the manual also
> implies that it will sense speed from a <CR>.
Page 7-27 (functional description of the TIC) says:
Speed sensing is accomplished by executing an ENQ/ACK handshake with
the connected device. [...] If there is no response after
transmitting at all [eight] of the baud rates, the PCC senses the
line waiting to receive a Carriage Return. [...] When the Carriage
Return is received, the PCC will configure the port for the baud rate
of the sending device.
But perhaps this doesn't pertain to the system console, as it seems to
contradict the requirement above.
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