Perle Systems RIO 5500036-17 - Manual (Page 184)

RIO Remote I/O System User Guide
Installing a Long Distance Module (LDM)
Page 184
Chapter 2 Installing hardware and software
LDM Cabling information
This section contains cabling information for installing Long Distance Modules.
LDU flying lead connector pinouts
Cable diagram
Mini DIN on RIO link flying lead
Note
For modem installations, a converter cable must be used to connect the LDU DB25 flying
lead to the modem. See
Asynchronous/Synchronous Modem & X21bis (DB25
female to DB25 male) on page 187 .
On long-wire installations, you can connect the long wire directly to the DB25 flying lead.
See
Asynchronous Long-wire Connection (DB25 male to DB25 male) on
page 186 .
For X.21 Synchronous connections, you need to use a converter cable to connect the DB25
flying lead to the X21 interface. See
Synchronous X.21 connection on page 188 .
PIn Signal Description PIn Signal Description
1 GND Ground 5 RXD+ Receive Data
2 VCC Supply Voltage 6 TXD+ Transmit Data
3 RXD- Inverse RXD
4 TXD- Inverse TXD
1 2
3 4
5 6
1 13
14 25