HP 9020 CE Handbook page 75

7 -8 9020 Peripherals
HP 27123A Shared Resources Manager (SRM)
Features
• Data transmission rate is 700 Kbits/sec.
• Access to the network through rotary polling on an HP 98028A Multiplexer (part of the SRM
product).
• All transmissions are broadcast to all connections on the HP 98028A Multiplexer.
• Packets can contain up to 512 data bytes.
• Reception of packets is acknowledged.
• Remote file access to create/open/purge a file/directory, read/write bytes, set protection, and
catalog.
Configuration
Ensure that the 8 switches are set to the binary equivalent of the assigned decimal node address. S 1
is the MSB; S8 is the LSB.
'97061 A
=
10m
B=25m
C=60m
D = 60m (un terminated)
27123A
SRM
INTERFACE
Sent's 2lXl
0-
Im _ _
c::f::P-
~TaOtherwarkstatian
ar SRM Cantroller
(50961-61600)
0.7M
CONNECTOR
COAX CABLE
HP 27123A Shared Resources Manager (SRM) Cabling
09020·90035.
rev: 7/85