AT&T 555-230-894 User Manual
Telephone Connection Example
Issue 1 September 1995
9-3
Figure Notes:
Figure 9-1.
302B to TN754 Wiring Example
Connect Adjunct Power
1.
For terminals needing adjunct power (such as Attendant Console
302B), wire -48V and ground to appropriate pinouts on the terminal, as
shown in Table 9-2 and in Figure 9-2. See the section titled "Install Power
Adapters" on page 9-47 for more information:
302B), wire -48V and ground to appropriate pinouts on the terminal, as
shown in Table 9-2 and in Figure 9-2. See the section titled "Install Power
Adapters" on page 9-47 for more information:
The following diagram illustrates these wiring designations.
Table 9-2.
Adjunct Power Wiring Examples (302B)
302B
Power
Supply
Pin
Name
7
-48V
-48V
8
GND
GND
1
2
3
6
TXT
TXR
PXT
PXR
TXT5
TXR5
PXT5
PXR5
39
14
40
15
3
3
4
5
1
2
1. 302B, 4-Wire
2. TN754, Position 1C02
3. Pin Number
4. Name
5. Port 5 Name