Installing a QNX network
Senstar 100 Installation guide • • • 4 - 21
3. Copy the lines output by the
nettrap query
after the line
emu87 &
and
before the line
nameloc &.
The -mCC00 of the netmap command indicates where the card
ROM is mapped into memory, and is set by a DIP switch on the
ARCNET card. The CC00 memory map is the desired DIP
switch setting for use with Senstar 100.
Creating or editing the netmap file
You can bypass this procedure by leaving the default ARCNET
netmap
file as is.
The file contains the text “one to one”, which applies if QNX logical node IDs
match ARCNET card Local Node IDs. You can set The ARCNET card ID using the
card’s ROM configuration utility. This is usually entered by pressing the
Esc
key
twice when the “
Node N
” text displays on the monitor when the system boots.
This setup utility defines the card Local ID, so you can easily match these to CU
numbers.
The format for the
netmap
file is:
Every computer on the QNX network must have an entry in the
netmap
file
and the
netmap
file must exist on every computer. The following is an
example of the entire contents of a
netmap
file on a two-CU ARCNET system
where the QNX nodes match the Card IDs:
1 1 t1
2 1 t2
The following is an example of a network where the QNX nodes do not match
the card IDs:
9 1 t1
10 1 t2
The first line shows that QNX node 9 is on network 1 and the card ID is
decimal 1. The second line shows that QNX node 10 is on network 1 and the
card ID is decimal 2.
You can determine network card information by entering the command:
# netinfo -l
Logical Node ID
Logical Network ID
Physical Node ID
in other words:
QNX Node ID
Network #
ARCNET card ID
