Nortel Networks 411-2021-111 manual 4Cell Site Layouts

3-4Cell Site Layouts

Figure 3-3

Block diagram of an omni Metrocell with 21 to 24 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 3-2 for

PA/ATC connection

DPA 5

ATC 2	TRU/DPA
	Shelf 2

DPA 8

DPA 9

ATC 3	TRU/DPA
	Shelf 3

DPA 12

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 24	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
		TX		receive)
	RX	Duplexer	ANT
RMC
		Position 3

Notes:

1.For diagram clarity, only one RF Frame is shown. Other RF Frames with 21 channels or mor 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

411-2021-111 Standard 01.01 June 1996