8571—Overview and specifications
NGT Transceiver System Technical Service Manual 327
Pinouts of the Line connectors on the 8571
The Line connectors may be fitted with either Option 2W or Option 4W.
Figure 6: Front view of the Option 2-wire connector on the 8571
In Australia, the 2-wire interface is supplied with a Telstra type 604 plug wired for
modes 12 or 14 (2-wire circuit on pins 4 and 6).
Outside of Australia, the 2-wire interface is supplied with a modular telephone plug
(conforming to FCC part 68), and a suitable wall-mounted socket. The 2-wire circuit is
connected to pins 2 and 5.
Table 4: Pinouts of the Option 2-wire connector on the 8571 (15-10509-001)
Pin no. Function
1N/C
2 Telephone line
3N/C
4N/C
5 Telephone line
6N/C
25