10Base-T/100Base-TX/E1 converter
Operating Manual
_______________________________________________________________________________
IOA78-1C 13 January 2005
4.4. Connecting connection cables
4.4.1. Ethernet
interface
Pin1
Pin8
1 White-orange
2 Orange
3 White-green
4 White-blue
5 Blue
6 Green
7 White-brown
8 Brown
Figure 4-1: Ethernet interface RJ-45 male connector.
Connecting cable connectors Figure 4-1 should be terminated in the same way on both
ends, spiral colors must be clamped on the same appropriate pins in case of straight cable. Straight
cable is used for connecting network interface cards with converter MDI ports and for connecting
switches or hubs with MDI-X port. Crossed cable can be used for connecting network interface
cards with the MDI-X port of the converter and for connecting switches or hubs with MDI ports.
Crossed cable is shown on Figure 4-2. .
Pin1
Pin8
1 White-orange
2 Orange
3 White-green
4 White-blue
5 Blue
6 Green
7 White-brown
8 Brown
1 White-green
2 Green
3 White-orange
4 White-blue
5 Blue
6 Orange
7 White-brown
8 Brown
Figure 4-2: Method of connecting crossed cable.
4.4.2.
E1/G.703 line interface
Input and output signals of the E1/G.703 interface should be supplied by two symmetrical
screening cables, impedance 120
Ω
, or by one double screening cable with the same impedance
value. The input signal should be supplied to pins 1 and 2, while output signal should be led out of
pins 3 and 6 (Figure 4-3). To meet disturbance emission requirements, the following rules should
be obeyed. Symmetrical cables should be connected with an RJ-45 pin equipped with metal or
metallized casing (tubing). Cable screen should connect to the casing.
Pin1
Pin8
1 White-orange
2 Orange
3 White-green
4 Not connected
5 Not connected
6 Green
7 Not connected
8 Not connected
Figure 4-3. E1/G.703. interface RJ-45 male connector.
Description of terminals on E1/G.703 line interface connector is presented on Figure 4-2.
