Install and Wire Telephones and Other Equipment

1

 

2

3

3

4

L O

L O

4 8

L O *

L O *

2 3

LI

L I

2 2

L I*

L I*

4 7

Figure Notes:

1.

External Trunk

4. Pin Number

2.

TN464, Position 1C06

LI* Balanced Input Pair

3.

Name

LO* Balanced Output Pair

Figure 9-6. TN464 Wiring Example

Auxiliary Connector Outputs

The control carrier outputs cable pinouts are shown in Table 9-6 on page 9-11.The control carrier AUX connector outputs include the following:

Alarm monitoring for the auxiliary cabinet

Seven -48VDC power sources for emergency transfer units

Three -48VDC power sources for remotely powering three attendant consoles or telephone adjuncts.

The INADS (remote system management terminal interface) trunk connection location.

Access to a relay contact is available to actuate a light, bell, or similar type customer-provided alarm device. The relay can be administered to make contact when a major, minor or warning alarm condition occurs in the switch. The circuitry required for this feature must be provided by the customer. The device connected to the alarm leads must not exceed a rating of 100 volts at 3/4 amps. The pinouts for an external alarm are shown in Table 9-6 on page 9-11.

A connector labeled AUX is provided on the back of the control carrier. Connect a 25-pair cable from this connector to a connecting block of the trunk/auxiliary field designated by callout 2 in Figure 5-1 on page 5-2.

9-10Issue 1 September 1995

Page 140
Image 140
AT&T 555-230-894 manual Auxiliary Connector Outputs, TN464 Wiring Example