Zultys MX250, Hardware Manual

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MX250 Hardware Manual
3.4.1.2 RJ45 Pin Assignment
All 10/100Base-T Ethernet ports can be routed to a patch panel or to a punch down block for
fanning out to the proper destination. All ports use the RJ-45 connectors. Each circuit can
auto-detect CAT5 cable configuration (straight or crossover) and adapting accordingly.
Ethernet cable wiring must comply with EIA/TIA 568A for the CAT5 10/100Base-T Ethernet. Some
cable suppliers reference EIA/TIA 568A and others reference 568B. The difference is that the green
and orange pairs are terminated to different pins, however, the assignment of pin to signal are
exactly the same on both references. Crossover cables comply with EIA/TIA 568A in all aspects
except signals on pins 1 and 3 at one end appear on pins 2 and 6 at the other end.
Figure 3-8 shows the pin assignment on an RJ45 connector.
3.4.2 Analog Circuits
3.4.2.1 Usage
The MX250 supports up to three analog FXO or FXS cards through the interface slots. Each analog
card provides eight analog circuits. FXO circuits support Loop Start and Ground Start protocols;
FXS circuits support Loop Start. Analog circuit protocols are configured through the MX
Administrator software.
3.4.2.2 Analog RJ12 Pin Assignment
Two RJ12 ports on the MX250 connect analog subscriber circuits to the MX250. Figure 3-4 shows
the pin placement of the analog RJ12 connector. Figure 3-5 lists function of each pin.
Figure 3-3 Pin Placement of a 10/100 Ethernet Circuit
Figure 3-4 Pin Placement of the Analog Circuit RJ12 Connector