2.5.5
ESTB-C and EDTB-B
FIGURE 60 ESTB-C FUSE AND LED LOCATION
FIGURE 61 EDTB-B, FUSE LOCATION
Each station port is provided with a 375mA
3AG fuse. The port corresponding to the
DSS Console must have a 1 A fuse, replace the 375
fuse with the 1 A fuse packaged with the
DSS console. As an example, station number 35 was assigned as the DSS station port in the
example above, therefore, port number 36 is assigned as the DSS console port automatically.
Then, the first fuse
in the ESTB-C-5 position must be replaced. In the case of the N 616, the
fuse on the EDTB-B card must have a 1 A rating.
Refer to figures 60 and 61 for fuse locations and Table 13 to find the fuse associated with each
port. On the ESTB-C board there are four LEDS to indicate station handset status. LED1 for the
first station to LED4 for the fourth station. The LED lights steadily when the station handset is off
hook.
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ISSUE 1