Ericsson MINI-LINK TN R4 ETSI - Page 31

Basic Node
3.5.3 LTU
3.5.3.1 Overview
The following LTUs with E1 interfaces are available:
LTU 32/1
Fits in any subrack. The LTU 32/1 provides 32 additional E1
interfaces.
LTU 16/1
Fits in any subrack. The LTU 16/1 provides 16 additional E1
interfaces.
LTU3 12/1
Fits in an AMM 2p B, AMM 6p C or D and in an AMM 2p
(as LTU 12/1 Kit, incl. washer). For sites where the four
E1 interfaces on the NPU3 are insufficient, the LTU3 12/1
provides 12 additional E1 interfaces.
LTU 16/1
LTU 32/1
LTU3 12/1
3x(4xE1)
E1:1A-1D
E1:2A
-2D
E1:3A-3D
E1:4A-4D
E
R
IC
S
S
O
N
LTU 16/1
Fault
Power
B
R
4x(4xE1)
8x(4xE1)
Fault
Power
BR
TR:8A-8D
E1/D
S1
LTU 32/1
TR:7A-7D
E
1/D
S1
TR:6A-6D
E
1/DS1
TR:5A-6D
E
1/DS
1
TR:4A-4D
E1/DS
1
TR:3A-3D
E
1/DS
1
TR:3A-3D
E1/DS1
TR:3A-3D
E1/DS1
10040
E
1
/
D
S
1
E
1
/
D
S
1
L
TU
3
12 1
E
1
/
D
S
1
Figure 25 LTUs with E1 interfaces
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