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893-741-B
A5-1
Chapter A5
Printers
The Model 5390 server provides two utilities that enable hosts to send print requests to a remote
printer: aprint and rtelnet.
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The aprint utility provides a unidirectional interface; it can send print jobs to the serial port.
Printers using aprint must be output only devices.
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The reverse telnet daemon, rtelnet is a bidirectional interface for sending print jobs to serial
and serial PostScript-compatible printers.
The aprint and rtelnet utilities do not provide spooling capabilities, but you can use them as
transparent utilities for other printer spooling systems, e.g., lpd (BSD) or lp (System V). For more
details on these utilities, see Utilities starting on page C4-1.
Printer Cables
When using EIA flow control (also known as hardware handshake, hardware flow control, and RTS/
CTS flow control), some printers may require a special cable. This cable should have the transmit
data and ground leads connected from the printer to the Model 5390 port as normal. The flow control
signal generated by the printer (the location is printer-specific) should be connected to the CTS
signal on the Model 5390 server: this is pin 4 on a terminal cable and pin 5 on a modem cable. For
serial cable wiring diagrams, refer to Installing the Model 5390 Communication Server.
Configuring Parameters for a Serial Printer
Consider the following port configuration parameters when attaching a printer to a serial port (see
Configuring Ports starting on page A3-1 for more details):
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Set the type parameter to hardwired.
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Set the mode parameter to slave.
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Set the speed parameter to the speed of the printer. Do not use autobaud.
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Set the data_bits, stop_bits, and parity parameters to match the requirements of the printer.
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Set the allow_broadcast parameter to N.
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For EIA flow control, set the control_lines parameter to flow_control and the
input_flow_control and output_flow_control parameters to eia.
Summary of Contents for 5390
Page 28: ...893 741 B Figures xxviii ...
Page 44: ...893 741 B Preface xliv ...
Page 45: ......
Page 48: ......
Page 60: ...A1 12 893 741 B Introduction to the Model 5390 Server ...
Page 106: ...A3 18 893 741 B Configuring Ports ...
Page 142: ...A5 12 893 741 B Printers ...
Page 152: ...A6 10 893 741 B Modems ...
Page 168: ...A7 16 893 741 B Serial Line Internet Protocol SLIP ...
Page 224: ...A9 38 893 741 B Internetwork Packet Exchange IPX Protocol ...
Page 258: ...A11 12 893 741 B Dial up Networking ...
Page 289: ...893 741 B A12 31 Internet Protocol IP Routing that are possible ...
Page 506: ...A15 86 893 741 B Using Model 5390 Security ...
Page 507: ......
Page 544: ...B1 36 893 741 B Network Administration ...
Page 574: ...B2 30 893 741 B Simple Network Management Protocol SNMP ...
Page 575: ......
Page 606: ...C1 30 893 741 B na Commands ...
Page 676: ...C2 70 893 741 B Configuration Parameters ...
Page 772: ...C3 96 893 741 B Using the CLI Commands ...
Page 794: ...C5 12 893 741 B Network Protocols ...
Page 795: ......
Page 796: ... Appendix D1 Software Reference Part D Appendixes ...