ADC ISDN NT11010 - Manual (Page 15)

7
C H A P T E R
3
Installing your unit
Rear panel
1 The 1010 rear panel (see Figure 3) has three RJ45 connectors, two for the
S/T-interface and one for the U-interface.
2 The two RJ45 connectors for the S/T interface, located on the left side of
the rear panel, are connected in parallel internally. When one RJ45 connec-
tor is being used, the maximum range is 3,300 feet (1,000 meters). When
both RJ45 connectors are being used, the total range on both shall not
exceed 660 feet (200 meters). The RJ45 pin connector assignments for the
S/T interface are shown in Table 1.
Figure 3—1010 NT1 rear panel
Table 1—S/T interface (RJ45) connector pin assignments
S/T S/T U
Pin Function Pin Function
1 — 2 —
3 RX + 4 TX +
6 RX - 5 TX -
7 -40 VDC 8 GND