Subscriber Signaling: TLU75, TLU83I

In the paging equipment the a-wire is fed by 6-48 V or -6 - -48 V, and the b-wire is connected to 0 V.

In idle state there is a high resistance between the a- and b-wires (>200 kohm).

Table 1. TLU75/1 Transmission Levels (dBr)

Short line, input

-3

Short line, output

-3

Long line, input

-

Long line, output

-

Note: Some boards can have different variants on different markets, and their transmission levels can differ from those above.

For TLU83 details, refer to TLU83, ANALOG TRUNK DESCRIPTION.

Input impedance:

600 ohms (nominal value at 800 Hz).

Parent topic: Electrical Interface
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