User Manual

MDR2400/5800-SR, Orion2410/5810-SRi and Orion 5825-SR
862-01881 Issue 12c Page 55
8.5.5 Ethernet Traffic Interface
Data Rate: < 8 Mbps Half / full duplex software selectable
(Refer to Chapter G, 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/RF Unit Interface
The physical interface between the Indoor and RF 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
RFU and the DIU. Cable lengths of up to 120 meters have been tested in a laboratory
environment.