User Manual

MDR5800 User Manual
862-01881 Issue 6 Page 67
8.5.5 Auxiliary Input Interface (CONTACT CLOSURE)
Number of Inputs: 2
Maximum voltage: 12V
Logical zero: Short from input to return pin
Logical one: Open input to return pin
8.5.6 Auxiliary Output Interface
Number of outputs: 2
States: Normally-open and normally-closed
Contact rating: DC: 220 V, 1 A, 60 W
AC: 250 V, 1 A, 125 VA
8.5.7 Wayside channel interface
Interface standard: RS232, DCE
Handshaking: None, Hardware
Port rate: 115,200 bps
8.5.8 Element Manager Port Interface
Interface standard: RS232, DTE
Handshaking: Hardware
Data rate: 115,200 bps
8.5.9 Indoor/Outdoor Unit Interface
The physical interface between the Indoor and Outdoor Unit is IEEE802.3 Ethernet.
As such, the same considerations that apply between standard routers/switches/hubs
and PC LAN cards should be adhered to when selecting lengths of cables between the
OU and the IU. Cable lengths of up to 120 meters have been tested in a laboratory
environment.
The following table lists information to assist the user to select cables to be used
between the Indoor and Outdoor Units.