Ericsson MINI-LINK TN R3 ETSI - 3.3 Node Processor Unit (NPU)

MINI-LINK TN R3 ETSI
3.3 Node Processor Unit (NPU)
The NPU implements the system’s control functions. One NPU is always
required in the AMM. The NPU also provides traffic, DCN and management
interfaces.
The NPU holds a Removable Memory Module (RMM) for storage of license and
configuration information. The following NPUs are available:
3.3.1 Overview
NPU1 B Fits in an AMM 6p B or AMM 20p.
NPU2 Fits in an AMM 2p.
NPU3
Fits in an AMM 2p B, AMM 6p C or AMM 6p D.
NPU2
0V
0V
DC
DC
-48V
+24V
E1/DS1:3A-3D
10/100 Base-T
FP
O&M
NPU1 B
NPU2
10/100BASE-T
1x(4xE1)
O&M
2x(4xE1)
User I/O
10/100BASE-T
O&M
Not used
ERICSSON
NPU
1
B
10/100Base-
T
Console
O&M
E1:3A-3D
E1:2A-2D
User I/O:1A-1I
Fault
Power
BR
RMM
RMM
+24 V DC
–48 V DC
NPU3
TR:4A-4D/User Out:E-F
10/100 Base-
T
F P
O&M
2x(10/100BASE-T)
4xE1 + 2xUser Out
O&M
RMM
NPU3
9959
E1/DS1
10/100 Base-
T
LAN
TR:3
Figure 24 NPUs
The following summarizes the common functions of the NPUs:
• Traffic handling
2
0
4
/1555-CSH 109 32/1-V1 Uen B 2007-09-14