Pll Information - Furuno Felcom 250 Service Manual

When you intend to have the Handsets or the Incoming indicator equipped via the
SW HUB, make sure to use a SW HUB of the PoE specifications.
When you intend to connect the Incoming indicator via the HUB, make sure to use a
HUB of the type B specifications.
Unit LAN port
Communication unit
(supply power)
Handset (power supplied)
Incoming indicator
(power supplied)
Type A : Power supplied between 1, 2 (TX+/-) and 3, 6 (RX+/-)
Type B : Power supplied between 4, 5 (vacant pair) and 7, 8 (vacant pair)

10.6.2.2 PLL information

The PLL transmitting / receiving frequency set for the Communication unit IF board
and their PLL statuses are displayed. The transmitting / receiving frequency is different
every time communication is established.
Type
B
A, B
B
Fig. 10.6.1 IF board block diagram
10-28
10.6 Service
Class
48 V/30.8 W
2(7 W)
1(4 W)