Isihp-4S/4U Serial Card - Multitech ISIHI-2S User Manual

1.1.2 ISIHP-4S/4U Serial Card

From the perspective of the server PC, the ISIHP-4S/4U is an sixteen-port serial card with sixteen devices
permanently attached to the serial ports (Figure 1-2).
The first eight ports are the four terminal adapters, each of which appear as two ports. The remaining eight
ports are the eight central site modems. Table 3 summarizes the correlation of ports and devices. The ISIHP-
4SD contains terminal adapters only; no modems are present.
Table 3: 4S/4U Ports and Devices
4S/4U Device ISDN Line
Port # Number
1 TA
2 TA
3 TA
4 TA
5 TA
6 TA
7 TA
8 TA
9 Modem
10 Modem
11 Modem
12 Modem
13 Modem
14 Modem
15 Modem
16 Modem
Figure 1-2. Modems and Terminal Adapters
of ISIHP-4S/4U (for ISIHP-4SD, no modems are present)
1
1
2
2
3
3
4
4
1
1
2
2
3
3
4
4
Chapter 1 - Introduction
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