TELEPHONE INTERFACE MODULE (TIM)

14.11.3SWITCH SETTINGS ON 6132A (DID AP-

PLICATIONS)

 

Table 14-10 TELLABS 6132A - DID

 

 

Sw

Purpose

 

 

S14

Initially set to NORM. If the E-Lead (Green LED)

 

stays on constantly, or the termset does not answer

 

in-dial, place S14 in REV position. This switch

 

reverses the battery polarity presented to the CO

 

from the Termset in DID applications.

S5

Place in 2W. This switch determines the interface.

S4

To get started, set to 900, with all capacitors in. Set

 

to variable and adjust R38 when performing the

 

actual balance. This balance network allows 600,

 

900 or variable resistor (2k) resistive balance. Also,

 

5 capacitors ranging from .002 ∝F to .032 ∝F in

 

octaves (i.e. .064 ∝F total capacitance) provide for a

 

capacitive balance.

R38

This potentiometer controls the resistive balance in

 

the variable mode of S4.

S11

Set to B. This switch swaps roles of E-Lead and M-

 

Lead.

S12

Supervisory Mode. Set to RB (Reverse Battery) for

 

DID applications.

S15

Set to a = inv, b = inv, c = d = e = off.

 

'a' sets up inverted E&M inputs.

 

'b' sets up inverted E&M outputs.

 

'c' sets up continuous (vs. interrupted ringing.

 

'd' sets up no ring-back tone.

 

'e' sets up no pulse correction.

S3

Set to 600. This switch provides 2W port terminat-

 

ing impedance.

S14

 

 

 

 

 

 

 

S11B

 

 

 

 

 

 

 

 

 

 

 

 

 

NORM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S5

2W

S4

 

 

 

 

 

 

 

 

 

 

 

 

S12

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

900

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ALL CAPS ON

 

 

 

 

 

 

 

RB (REVERSE BURST)

R38

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TOP DOWN

S15

a = inv

b = inv

c = d = e = off

S3

600

BOTTOM UP

Figure 14-23 TELLABS 6132A - DID

14-24