HP Model 712/100 hp 9000 series 700 model 712 technical reference manual (a261 - Page 24

Video, RS-232, Table 2-3. RS-232 Technical Information, Connector Type

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Video A proprietary graphics controller chip is the basis for system board graphics. The Graphics ASIC outputs the standard HP workstation video signal. This signal consists of three analog channels of color Red, Green, and Blue. The analog output of each channel conforms to the RS343A specifications when driving a doubly terminated 75 Ohm line. Video cable length should not exceed 30 feet, due to signal degradation. The system provides HPs' Color Recovery. The graphics subsystem supports the following: H 1024 by 768 by 8 bit color at 60 Hz to 75 Hz. H 1280 by 1024 by 8 bit color at 60 Hz to 72 Hz (with optional VRAM Card). H 15 pin VGA style connection. H NGLE compatible. H Support of the following VESA timings: 1280 by 1024 at 75 Hz. 1024 by 768 at 75 Hz. 800 by 600 at 75 Hz. 640 by 480 at 75 Hz. RS-232 The RS-232 port is full modem control with RTS hardware flow control. The port is implemented using a 9-pin male D-sub connector. Some devices which are supported on RS-232C include modems, plotters, printers, terminals, digitizers, and other input devices. Table 2-3 lists technical information for the RS-232 interface. Table 2-3. RS-232 Technical Information Function Type: Baud rate: Word size: Parity Device Type: Connector Type: Data RS-232C 50 to 454k Up to 227k input w/handshaking 5 to 8 bits Odd, even, one, zero, none 1 per interface connector 9-pin male D-sub connector 2-4 System Board Model 712 Technical Reference

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2-4
!ystem Board
Model 712 "echnical °eference
Video
A proprietary graphics controller chip is the basis for system board graphics. "he Graphics A!IC
outputs the standard HP workstation video signal. "his signal consists of three analog channels
of color °ed, Green, and Blue.
"he analog output of each channel conforms to the °!343A
specifications when driving a doubly terminated 75 Ohm line.
Video cable length should not
exceed 30 feet, due to signal degradation. "he system provides HPs' Color °ecovery.
"he graphics subsystem supports the following:
H
1024 by 768 by 8 bit color at 60 Hz to 75 Hz.
H
1280 by 1024 by 8 bit color at 60 Hz to 72 Hz (with optional V°AM Card).
H
15 pin VGA style connection.
H
NGLE compatible.
H
!upport of the following VE!A timings:
1280 by 1024 at 75 Hz.
1024 by 768 at 75 Hz.
800 by 600 at 75 Hz.
640 by 480 at 75 Hz.
RS-232
"he °!-232 port is full modem control with °"! hardware flow control. "he port is implemented
using a 9-pin male D-sub connector. !ome devices which are supported on °!-232C include
modems, plotters, printers, terminals, digitizers, and other input devices.
"able 2-3 lists technical information for the °!-232 interface.
Table 2-3. RS-232 Technical Information
Function
Data
Type:
RS–232C
Baud rate:
50 to 454k
Up to 227k input w/handshaking
Word size:
5 to 8 bits
Parity
Odd, even, one, zero, none
Device Type:
1 per interface connector
Connector Type:
9–pin male D–sub connector