User guide

29
Chapter 3 - Software Installation
25. For the ISIHP-1S card only. The ISIHP-1S is a scaled-back revision of the ISIHP-2S card meant for low-
density applications where hybrid flexibility (having TAs and modems on the same card) is advantageous.
The diagram below describes the design differences between the ISIHP-1S and ISIHP-2S. It also
summarizes how the ISIHP-1S must be treated during installation.
When installing ISIHP-1S software:
(a) treat ISIHP-1S as an 8-port card;
(b) assign first 2 ports as terminal adapters (TAs);
(c) skip two port numbers;
(d) assign next 2 ports as analog modems.
(e) Other devices can use port numbers
that were skipped by the ISIHP-1S.
ISIHP -- Differences between 1S and 2S versions,
especially COM port assignments
}
RJ-45 jack
Com Ports
Line 1
Modem
Modem
TA
7
8
3
4
3456
6
2
1
5
ISDN
These ports
are unused
on the ISIHP-1S.