Lucent Technologies Lineage
®
2000 25A Ferroresonant Rectifier J85502A-1
Issue 4 May 1998
Testing 6 - 5
3. Using the digital multimeter (DMM) on the dc volts scale,
check the plant control cable:
a.
Verify that battery voltage, via the controller, is
present between positions 1 and 2 on TB3 (see Figure
5-2).
b.
Check for battery voltage between pins 27 and 2 of
control cable connector J2A. The J2A connector is at
the rectifier end of the plant control cable. Pin 27
should be positive with respect to pin 2.
c.
As an extra precaution, check for battery voltage
between ground and pin 2 (negative plant) or pin 27
(positive plant). If no voltage exists, there is a wiring
problem associated with the control cable or
controller. The problem must be found and repaired
before proceeding with testing.
d.
With the BAT fuse installed in the plant controller,
check for battery voltage between pin 5 of J2A and
ground.
e.
If the plant is equipped with an MCS controller, again
on J2A, check for 15-20 volts dc between pins 35 and
31. Pin 35 should be positive with respect to pin 31.
4. Place the Battery Plant Simulator Test Set (Figure 6-1) at a
convenient location near the rectifier. Connect J2A, on the
other end of the cable from the test set, to connector P2A
on the CM2 control board, which is mounted on the inside
of the rectifier door. Connect the red, black, blue, and
white test clips from the test set to the CM1 and CM2
boards in the rectifier as detailed in Table 6-B. Refer to
Figures 6-2 and 6-3.
Note
On J2A, pins 1, 5, 10, 15, and 20 are marked on the
connector. Pin 21 is in the row across from pin 1. Pin 40 is
across from pin 20
