System Configuration Of 10Base-5 - Hitachi SV.LINK User Manual

6 USER GUIDE

6.1 System Configuration of 10BASE-5

As shown in Figure 6-1, a basic configuration consists of a single coaxial cable of up to 500 m
and stations connected to this cable. Each station is connected to the coaxial cable via a
transceiver cable and a transceiver. (The station means S10mini or S10V and MELSEC.) This
basic configuration is also called a segment; up to two stations (one unit of the S10mini or S10V
and MELSEC each) can be connected in one segment.
When the distance between stations exceeds 500 m, the number of segments can be increased by
branching by using repeaters (see Figure 6-2). This figure shows an example of a system in
which the maximum distance between stations does not exceed 1,500 m. Configure the system
so that no more than two repeaters are connected between the S10mini or S10V and MELSEC.
Figure 6-3 is an example in which the maximum distance between stations is 2,500 m. A
repeater to which a link cable (up to 500 m) is attached is counted as one repeater, which is called
a link segment.
The parameters related to system configuration are listed below.
Maximum segment length
Maximum number of transceivers in segment
Maximum distance between stations
Maximum number of stations in system
Maximum length of transceiver cable
Maximum number of repeaters in route
between stations
Connect a repeater to a coaxial cable via a transceiver cable and a
transceiver.
A repeater can be attached to a transceiver at any position in the coaxial
segment.
Do not attach a station to a link cable.
The distance between attached transceivers shall be a multiple of 2.5 (m).
Item
500 m
100
2,500 m or less (excluding transceiver cable)
2 (S10mini or S10V, MELSEC each)
50 m
2
NOTICE
6-2
Specification