User's Manual

MDR2400-SR, MDR5800-SR and Orion 5825-SR
Issue 10 Page 57
Data Rate: < 8 Mbps Half / full duplex software selectable
(Refer to Chapter 7, page 114)
Digital Interface: 10 BaseT, Half / full duplex, DTE
Connector: RJ45
8.5.6 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
8.5.7 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
8.5.8 Wayside channel interface
Interface standard: RS232, DCE
Handshaking: None, Hardware
Port rate: 115,200 bps
8.5.9 Element Manager Port Interface
Interface standard: RS232, DTE
Handshaking: Hardware
Data rate: 115,200 bps
8.5.10 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.