Nortel Networks 411-2021-111 manual Cell Site Layouts

Cell Site Layouts 3-3

Figure 3-2

Block diagram of an omni Metrocell with up to 20 channels in one RF Frame

RF Frame 1	See Table 3-3 for
(Note 1)	RMC/TRU Shelf connection

Antenna

(Main

Control Channel

(Note 2)

DPA 1

	TRU/DPA
ATC 1
	Shelf 1

DPA 4

See Table 3-1 for

PA/ATC connection

DPA 5

ATC 2	TRU/DPA
	Shelf 2

DPA 8

DPA 9

ATC 3	TRU/DPA
	Shelf 3

DPA 10

TRU 1 6 5 4 3 2 1		TRU SHELF	SPLITTER 1
		TRU SHELF	SPLITTER 4
	1
TRU 8	5 4 3 2
	6
TRU 9	6 5 4 3 2 1	TRU SHELF SPLITTER 1
		TRU SHELF	SPLITTER 4
TRU 16	1
	5 4 3 2
	6
TRU 17	6 5 4 3 2 1	TRU SHELF SPLITTER 1
		TRU SHELF	SPLITTER 4
TRU 20	1
	5 4 3 2
	6

A1

A2 A3

A8

B1

B2

B3

B8

1A		TX		receive)
	RX	Duplexer	ANT
		Position 2
RMC				Antenna
1B				(Diversity
RMC				receive)

Notes:

1.For diagram clarity, only one RF Frame is shown. Other RF Frames with 20 channels or less are connected and operated identically to that of RF Frame 1.

2.TRU1 at TRU/DPA Shelf 1 of RF Frame 1 is assigned as the CCH and TRU4 at the same shelf is assigned as the backup CCH.

CE Frame

ICRM HSMO

DMS-MTX DualMode Metrocell Cell Site Description