![](/images/backgrounds/287009/hp-designjet-250c-users-manual-54870515x1.png)
The plotters operate with a variety of computer systems through either the serial, RS72327C port or the parallel, Bi7Tronics, extended7capability port (ECP).
An autoswitching feature enables the plotter to detect from which interface it is receiving data, so you can send data through either interface without having to change the plotter settings. (More on interfaces ' chapter 5, w Input/Output Interfaces.)
Network ConnectionsYou can connect the plotters to a network through an optional HP JetDirect EX or
HP JetDirect EX Plus3 external print server. The range of network operating systems that are supported are as follows:
Local Area Network | Network Operating System | Computer Operating System |
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Ethernet | Novell Netware | DOS, Windows |
| LAN Manager | DOS, Windows |
| TCP/IP | |
| TCP/IP | IBM AIX |
| EtherTalk | Macintosh, Apple Products |
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Token Ring | Novell Netware | DOS, Windows |
| LAN Manager | DOS, Windows |
| TCP/IP | |
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The print server includes a network autoswitching feature and can detect from which network it is receiving data. This enables you to send data through different networks without having to change the interface settings.
MemoryThe plotters have a standard 4 megabytes of on7board random access memory (RAM). They also have one RAM7expansion socket, which can hold an optional 47, 87, 167 or 327megabyte, single in7line memory module (SIMM). The maximum RAM is 36 MB.
AccuracyThe accuracy of the plotters in drawing a vector is0.38 mm (0.015 in) or 0.2% of the specified vector length, whichever is greater, at 23 _C (73 _F) at 50760% relative humidity, on HP Inkjet 0.0127cm (0.00487inch) polyester film.
C4699790000 | ProductInformation 173 |