HP Model 712/100 - Workstation Handbook page 21

Graphics
– Built–in 8–plane graphics with the following resolutions:
1024 x 768 at multiple frequencies
1280x1024 at multiple frequencies
800 x 600 at 75 Hz
640 x 480 at 75 Hz
(15–inch color monitors are not supported on the 712/100)
– 1024 x 1280 resolution requires Video RAM board on the system CPU board
– Graphics are configured at initial power–up and retained in stable storage on
the CPU board
– PC standard 15–pin female VGA–type connector
Standard I/O
– Serial interface
EIA RS–232C
CCITT V.24/V.28 460.8 Kbps with CTS/RTS hardware flow control
9–pin male DTE, PC standard connector
– Parallel interface
25–pin female, PC standard connector
Centronics
300+ Kb/second with DMA
200 Kb sustained
– SCSI–2 interface
8–bit, single–ended
5 Mb/second synchronous
1.5 Mb/second asynchronous
Supports 7 devices
ALT–1 of SCSI–2, 50–pin high density connector
Terminator not required when no cable attached. Active terminator required
when cable is attached.
– PS2 keyboard and mouse ports
Standard "mini–din" connectors
– Audio
Channels: 2 in, 2 out
Resolution: 16 bits
Sampling Rate: Up to 48 KHz
Connectors: 1/8" Stereo head set out
1/8" Stereo line in
1/8" Mono microphone input with 5v "phantom voltage"
for Electret type microphones
Optional I/O (supported by single expansion slot)
– IBM Token Ring board
802.5
4 and 16 Mbps*
STP:DB9 connector
– Serial Interface board
Logically identical to the workstation's standard serial interface
– Serial Interface and LAN AUI board
Serial interface is logically identical to the workstation's built–in serial
interface
802.3 LAN is functionaly identical to the workstation's built–in LAN AUI
LANIC IDs are stored in stable storage on the system's processor board
Two–headed external cable allows simultaneous use of both functions
1–2 Product Information
*Note: 16 Mbps on un-
shielded twisted pair
requires specific ex-
ternal transceivers