Installation, General procedure – Perle Systems RIO 5500036-17 User Manual
Page 179

RIO Remote I/O System User Guide
Installing a Long Distance Module (LDM)
Page 179
Chapter 2 Installing hardware and software
Installation
General procedure
To install a long distance module proceed as follows;
1. On the LDU, set the speed and protocol you want by setting the rotary switch on each
LDU (shown on
) using a small screwdriver. The settings available are shown in
the next table.
2. Install the type of LDU link you want. For Modem via telephone line see
, for
long wire see
and for X.21 see
.
Note
For modem installations, you need to use a converter cable to connect the LDU DB25 flying lead to the
modem. On long-wire installations, the long-wire you can connect directly to the DB25 flying lead.
For information on how to wire up the converters needed for each type of installation see
for LDU flying lead connectors
.
Device
Line Speed
Transmission type
Use switch
setting
Modem
9600
Asynchronous
0
Modem
19200
Asynchronous
1
Modem
38400
Asynchronous
2
Reserved address, do not use
3
Reserved address, do not use
4
Long wire
78000
Asynchronous
5
Long wire
156250
Asynchronous
6
Long wire
312500
Asynchronous
7
Modem
Synchronous
8
X21 bis
Synchronous
9
X21
Synchronous
A
Reserved address, do not use
B
Modem with Autodial
9600
Asynchronous
C
Modem with Autodial
19200
Asynchronous
D
Modem with Autodial
38400
Asynchronous
E
Reserved address, do not use
F