... Hardware Installation
Q-BUS Systems
A Q-Bus based TSX-PLUS system requires the installation of a
DEQNA or DELQA communications controller. A system memory of at
least 512k is required when installing the Internet Package.
The DEQNA/DELQA EQ.TSX handler requires 36k bytes for code and
packet buffers and the network server program TCPIP.SAV will use
64k bytes for a maximum of approximately 100k bytes before ac-
tivating any client/server programs. Each active client/server
program will use an additional 64k bytes plus one or two global
PLAS regions each 8k bytes in size.
NOTE
It is possible to install the TCP/IP Package on a 248K
machine using the DEQNA/DELQA 18-bit EQ18.TSX handler.
This handler requires 7.5k bytes for code and packet
buffers. This configuration allows at most one
networking application to be active.
Blockmode memory is recommended for use with the DEQNA com-
munications controller although not necessary. The DEQNA or
DELQA interface is connected via a bulkhead cable assembly (with
perhaps an extension ETHERNET transceiver cable) to a tran-
sceiver (with either a thick, thin, or CAT-5 wire connection).
UNIBUS Systems
A Unibus based TSX-PLUS system requires the installation of a
DEUNA or DELUA communications controller. A system memory of at
least 384k is recommended when installing the Internet Package.
The DEUNA/DELUA 22-bit (Unibus Mapping) EU22.TSX handler re-
quires 22k bytes for code and packet buffers and the network
server program TCPIP.SAV will use 64k bytes for a maximum of
approximately 86k bytes before activating any client/server pro-
grams. Each active client/server program will use an additional
64k bytes plus one or two global PLAS regions each 8k bytes in
size.
NOTE
It is possible to install the TCP/IP Package on a 248K
machine using the DEUNA/DELUA 18-bit (Non Unibus Map-
ping) EU18.TSX handler. This handler requires 7.5k
bytes for code and packet buffers. This configuration
allows at most one networking application to be ac-
tive.
The DEUNA or DELUA interface is connected via a bulkhead ca-
ble assembly (with perhaps an extension ETHERNET transceiver ca-
ble) to a transceiver (with either a thick, thin, or CAT-5 wire
connection).
Serial Port Installation If the system is to be configured for remote Telnet sessions then a pair of dedicated serial lines is required for each simultaneously active session. Each dedicated pair consists of a TSX-PLUS timeshare line cross connected to a CL line via a NULL-MODEM cable. For a DLV11-J four port serial board the cross connections may be easily obtained by constructing a 4" cable with the 10 wire flat cable flipped between the two ends (1->10, 2->9, .... 10->1). Then cut wires 1,2,9,and 10 at both connectors leaving a 6-wire NULL-MODEM cable. Two such cables allow PORT1 (TSX-timeshare line) to connect to PORT2(CL line) and PORT3 (TSX-timeshare line) to connect to PORT4(CL line) allowing two simultaneous remote Telnet sessions. The DLV11-J baud rate should be limited to 4800 as two serial ports are required for each session and is a relatively heavy burden even for a LSI-11/73. Cross connected DZ ports will provide faster and more effi- cient communication.
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Last Updated: June 2008