User Manual

Interface connections | 217
DFXS Interface connections
The subscriber interface connects the terminal to the customer's 2 wire
telephone via a 2 wire line.
Each 2 wire channel has two access points: one connects to a customer; the
other is a local test port.
Warning: If there is a power failure at either terminal, any
telephone connected at the DFXS will not operate.
Please ensure that a separate telephone that is not
dependent on local power is available for use in an
emergency.
RJ-45 Pin number Pin function Direction TIA-568A wire
colour
1 Not used Green/white
2 Not used Green
3 Not used Orange/white
4 Ring Bi-directional Blue
5 Tip Bi-directional Blue/white
6 Not used Orange
7 Not used Brown/white
8 Not used Brown
RJ-45 connector LED indicators
LED Status Explanation
Green On Normal operation
Yellow Flashing Loopback in place
Yellow On Alarm condition
Both LEDs Flashing Loss of CAS signals