The document describes the components and configuration of Ericsson's MINI-LINK TN radio access network system. It includes magazines that house plug-in modules, power filter units, fans, node processors, line termination units, Ethernet termination units, and modem units. The magazines come in various sizes to support different node types and capacities, and allow redundant power and modular plug-in modules.

1. MINI-LINK TN R4
System Description

2. © Ericsson AB 2007 LZU 108 6895 R1A Figure 1- MINI-LINK TN System Description
1
MINI-LINK TN System Description
• Magazine (AMM)
• Power Filter Unit
• Fan
• Node Processor Unit
• Line Termination Unit
• Ethernet Termination Unit
• Modem Unit

3. © Ericsson AB 2007 LZU 108 6895 R1A Figure 1- MINI-LINK TN System Description
2
Access Module Magazines
Diffrent sizes depending on the
need

4. © Ericsson AB 2007 LZU 108 6895 R1A Figure 1- MINI-LINK TN System Description
3
Access Module Magazine, AMM
AMM 2p (previous release)
• For edge and repeater nodes
• Can house 2 full width plug-in
units and 2 half width plug-in units
• Maximum 2 radio terminals
AMM 2pB (Now)
• For edge and repeater nodes
• Can house 2 full width plug-in units
and 2 half width plug-in units
• Maximum 2 radio terminals
• Redundant DC-power directly
connected to the magazine

5. © Ericsson AB 2007 LZU 108 6895 R1A Figure 1- MINI-LINK TN System Description
4
AMM 2p B, slots
Slot 02
Slot 03
Fan Unit FAU4
Reserved slots:
• 01: NPU3, NPU3 B
Configuration rules:
• Slot 00 is a HSU slot available
for any half size PIU except NPU
• Slot 02 and 03 are available
for any full size PIU
• Note that the DC power is
connected to the magazine
and not to a plug-in unit
Slot 00
Slot 01
Redundant DC power
+24 or -48VDC
NPU3 or NPU3 B

6. © Ericsson AB 2007 LZU 108 6895 R1A Figure 1- MINI-LINK TN System Description
5
Access Module Magazine, AMM
AMM 6p (previous release)
• For medium sized aggregation nodes
• Can house 6 full width plug-in units
• Maximum 5 radio terminals
AMM 6p B
• For medium sized aggregation nodes
• Can house 6 full width plug-in units
• Maximum 5 radio terminals
• Redundant DC-power

7. © Ericsson AB 2007 LZU 108 6895 R1A Figure 1- MINI-LINK TN System Description
6
Access Module Magazine, AMM
AMM 6p C (Now)
• For medium sized aggregation nodes
• Can house 5 full width plug-in units
and 2 half width plug-in units
• Maximum 5 radio terminals
• Redundant DC-power
AMM 6p D
• For medium sized aggregation nodes
• Can house 4 full width plug-in units
and 4 half width plug-in units
• Maximum 4 radio terminals
• Redundant DC-power

8. © Ericsson AB 2007 LZU 108 6895 R1A Figure 1- MINI-LINK TN System Description
7
AMM 6p C, slots
Slot 01
Slot 00
FAU slot
Slot 02
Slot 03
Slot 04
Slot 05
Slot 07
Slot 08
Reserved slots:
• 00 and 01: PFU3 B
• FAU: FAU2
• 07: NPU3, NPU3 B
Configuration rules:
• All 1+1 configurations starts at
slot number 2 and 4
• Dual pol. w XPIC
starting at slot number 2 and 4
• DC power +24 or -48VDC
Slot 06

9. © Ericsson AB 2007 LZU 108 6895 R1A Figure 1- MINI-LINK TN System Description
8
Access Module Magazine, AMM
AMM 20p
• For large sized aggregation nodes
• Can house 20 full height plug-in units
• Maximum 18 radio terminals
• Redundant DC-power

10. © Ericsson AB 2007 LZU 108 6895 R1A Figure 1- MINI-LINK TN System Description
9
AMM 20p B (Now)
AMM 20p B
• Large sized aggregation nodes
• 20 full size plug-in units
Max. 19 radio terminals
• Redundant DC-power, 48VDC
Fan unit
Cable shelf / air slot

11. © Ericsson AB 2007 LZU 108 6895 R1A Figure 1- MINI-LINK TN System Description
10
AMM 20p B, slots
Reserved slots:
• 00 and 01: PFU1
• 11: NPU1 B, NPU1 C
Slot 01
Slot 00 02 03 04 05 06 07 08 09 10 11 12 13 14 16 17 18
15 19 20 21
”4 group” ”4 group” ”4 group” ”4 group”
Configuration rules:
• 1+1starting at even numbered
slots except slot 10
• Dual pol. w XPIC
starting at even numbered slots
except slot 10
• DC power -48VDC

12. © Ericsson AB 2007 LZU 108 6895 R1A Figure 1- MINI-LINK TN System Description
11
MINI-LINK TN System Description
• Magazine (AMM)
• Power Filter Unit
• Fan
• Node Processor Unit
• Line Termination Unit
• Ethernet Termination Unit
• Modem Unit

13. © Ericsson AB 2007 LZU 108 6895 R1A Figure 1- MINI-LINK TN System Description
12
Power Filter Units, PFU
• DC power distribution to the magazine.
• DC filtering
• Short circuit, polarity and under voltage protection
• One unit is mandatory per magazine, one extra can be added
for DC redundancy
• Redundant PFU function is embedded directly in the AMM 2p B

14. © Ericsson AB 2007 LZU 108 6895 R1A Figure 1- MINI-LINK TN System Description
13
PFU1, PFU3 B
PFU1
• AMM 20p B
• Dedicated slots, 00 and 01
• -48VDC supply voltage
• Optional two units for DC redundancy
• Alarm interconnection for the Fan unit
PFU3 B
• AMM 6p C, AMM 6p D
• Dedicated slots, 00 and 01
• +24 or -48VDC supply voltage
• Optional two units for DC redundancy

15. © Ericsson AB 2007 LZU 108 6895 R1A Figure 1- MINI-LINK TN System Description
14
MINI-LINK TN System Description
• Magazine (AMM)
• Power Filter Unit
• Fan
• Node Processor Unit
• Line Termination Unit
• Ethernet Termination Unit
• Modem Unit

16. © Ericsson AB 2007 LZU 108 6895 R1A Figure 1- MINI-LINK TN System Description
15
AMM 2p B, FAU4
Air in
Air out
FAU4
AMM 2p B is equipped with a FAU4 depending on
the total power dissipation in the AMM.

17. © Ericsson AB 2007 LZU 108 6895 R1A Figure 1- MINI-LINK TN System Description
16
AMM 6p C and D, FAU2
Air in
Air out
FAU2
• Fan unit FAU2 is mandatory in all 6p magazines.
• At least 30 mm free space behind the magazine is needed
for sufficient airflow.
• If the space is less than 30 mm, a free space of 1U should be
free above the magazine.
• All unused slots shall be covered by dummy fronts.

18. © Ericsson AB 2007 LZU 108 6895 R1A Figure 1- MINI-LINK TN System Description
17
AMM 20p B, FAU1
• AMM 20p B
• Mandatory unit
• Three blowers for redundancy
• Redundant DC power
• Fan alarm interconnection to PFU1

19. © Ericsson AB 2007 LZU 108 6895 R1A Figure 1- MINI-LINK TN System Description
18
MINI-LINK TN System Description
• Magazine (AMM)
• Power Filter Unit
• Fan
• Node Processor Unit
• Line Termination Unit
• Ethernet Termination Unit
• Modem Unit

20. © Ericsson AB 2007 LZU 108 6895 R1A Figure 1- MINI-LINK TN System Description
19
Node Processor Unit, NPU
Common functionalities
• Central node processor
• Mandatory plug-in unit
• Holds configuration and licenses for the node in
Non-volatile memory and Removable Memory Module
• LAN interface for management DCN
• USB for local maintenance
• IP router for the management DCN
• SNMP agent
• E1/DS1 Line termination interfaces

21. © Ericsson AB 2007 LZU 108 6895 R1A Figure 1- MINI-LINK TN System Description
20
Node Processor units
NPU1 B
NPU3 NPU3 B
NPU1 C
NPU3 F P
BR
LAN
TR:3
10/100BASE-T 10/100BASE-T
TR:4A-4D/User Out:E-F
E1/DS1
O&M
NPU3 B F P
BR
TR:2/LAN
TR:3
TR:4A-4D/User Out:E-F
E1/DS1 10/100/1000BASE-T 10/100/1000BASE-T
O&M
TR:7/LAN
10/100/1000BASE-T
TR:6
10/100/1000BASE-T
OUT TR:5 IN OUT TR:4 IN
1000BASE-TX 1000BASE-TX
NPU1 C F P
O&M
LAN USB, local maintenance 4XE1 4XE1 3 user in, 3 user out
USB, local maintenance
Eth. traffic
LAN alt
3 user in, 3 user out
4XE1 4XE1
4XE1, 2 user out 4XE1, 2 user out
USB USB
Eth. traffic
Eth. traffic
LAN
LAN alt

22. © Ericsson AB 2007 LZU 108 6895 R1A Figure 1- MINI-LINK TN System Description
21
MINI-LINK TN System Description
• Magazine (AMM)
• Power Filter Unit
• Fan
• Node Processor Unit
• Line Termination Unit
• Ethernet Termination Unit
• Modem Unit

23. © Ericsson AB 2007 LZU 108 6895 R1A Figure 1- MINI-LINK TN System Description
22
Line Termination Unit, LTU
Traffic interfaces
E1/E2/E3/DS1/DS3/STM-1/OC-3
To terminate traffic to/from external equipment

24. © Ericsson AB 2007 LZU 108 6895 R1A Figure 1- MINI-LINK TN System Description
23
Line termination units, PDH
LTU3 12/1
LTU 32/1
LTU 16/1
Soffix connectors, 4 E1’s to each

25. © Ericsson AB 2007 LZU 108 6895 R1A Figure 1- MINI-LINK TN System Description
24
Line protection, SDH
LTU 155
Alarms
Alarms
2x Line Termination units
LTU 155 e/o, LTU B 155 or LTU 155 ANSI (1+1 APS)
Fibre
Same traffic over
two optical connections
TDM
bus
TDM
bus
BPI bus

26. © Ericsson AB 2007 LZU 108 6895 R1A Figure 1- MINI-LINK TN System Description
25
Line Termination Unit, SDH
LTU 155e or LTU155 e/o
• Terminates one STM-1 connection with 63xE1 in the
backplane.
• Electrical interface (G.703)
• Optical interface (Short haul S-1.1)

27. © Ericsson AB 2007 LZU 108 6895 R1A Figure 1- MINI-LINK TN System Description
26
MINI-LINK TN System Description
• Magazine (AMM)
• Power Filter Unit
• Fan
• Node Processor Unit
• Line Termination Unit
• Ethernet Termination Unit
• Modem Unit

28. © Ericsson AB 2007 LZU 108 6895 R1A Figure 1- MINI-LINK TN System Description
27
Ethernet Termination Unit, ETU
ETU2 for Ethernet traffic termination in any magazine
• Multi-port Ethernet plug in board
• 5 x 10/100BASE-T interface
• 1 x 10/100/1000BASE-T interface
• 180 Mbit/s throughput
10/100/1000BASE-T
ETU3
ETU3
ETU2

29. © Ericsson AB 2007 LZU 108 6895 R1A Figure 1- MINI-LINK TN System Description
28
MINI-LINK TN System Description
• Magazine (AMM)
• Power Filter Unit
• Fan
• Node Processor Unit
• Line Termination Unit
• Ethernet Termination Unit
• Modem Unit

30. © Ericsson AB 2007 LZU 108 6895 R1A Figure 1- MINI-LINK TN System Description
29
• Interface to the radio (One MMU per radio).
• Modulates the digital traffic into analogue radio-modulation
• Sets the traffic capacity and frequency bandwidth
• Compact 1+1 configuration
• MSP 1+1 support (MMU2 E,F)
• SFP for traffic termination (MMU2 E,F)
• Supports XPIC (MMU2 F,H).
• Supports Adaptive Modulation.
Modem Unit, (MMU)

31. © Ericsson AB 2007 LZU 108 6895 R1A Figure 1- MINI-LINK TN System Description
30
Modem units
General about SDH/Sonet types
Modem
MMU2 F 155 STM-1
OUT TR IN XPIC
MMU2E and MMU2F where XPIC is the different

32. © Ericsson AB 2007 LZU 108 6895 R1A Figure 1- MINI-LINK TN System Description
31
SFP:
• User selectable interface module to insert in
MMU2 E and MMU2 F
• Optical interface (Short haul S-1.1)
• Electrical interface (G.703)
Modem Unit, MMU
Small Form-factor Pluggable

33. © Ericsson AB 2007 LZU 108 6895 R1A Figure 1- MINI-LINK TN System Description
32
Modem Unit, MMU (R3)
128
QAM
2x2 4x2 8x2 17x2 8x2 17x2 22x2 32x2 35x2 75x2 155
46x2 155
C-QPSK 16 QAM 128 QAM 16/64
QAM
MMU2 B
MMU2 C
MMU2 D
MMU2 F*
MMU2 E
* with XPIC available with 128 QAM

34. © Ericsson AB 2007 LZU 108 6895 R1A Figure 1- MINI-LINK TN System Description
33
MMU Types (R4)
 PDH Only:- MMU 2B and MMU 2C.
 SDH Only:- MMU 2E and MMU 2F.
 Super PDH and Ethernet:- MMU 2D and MMU 2H
– The Channel Spacing and Modulation Techniques are set to give
a total traffic capacity.
– This Total Traffic Capacity can be divided into (E1s) and Packet
Link Capacity.

35. © Ericsson AB 2007 LZU 108 6895 R1A Figure 1- MINI-LINK TN System Description
34
Bandwidth
Modulation
MMU2 H
Traffic capacities – XPIC & adaptive modulation
Capacity
Mbps
7 MHz 14 MHz 28 MHz 40 MHz 56 MHz
4 QAM 10 21 46 65 94
16 QAM 21 45 94 133 189
32 QAM 25 54 115 167 237
64 QAM 29 66 138 197 285
128 QAM 35 72 160 229 326
256 QAM 41* ** 78 180 257 369
512 QAM 50* ** 95* ** 200* 286 406
TN
Physical modes planned to be
available with XPIC before and
including release 4.4
Physical modes that can combine
XPIC and AM planned before and
including release 4.4
Stated Capacity are:-
1) 406 Mbps air interface capacity
2) 500 Mbps line interface capacity
Mix NativeEthernet and Native PDH in
steps of 2 Mbps
MIX Adaptive Modulation and XPIC
Secure highest possible traffic capacity
** Not available for 26, 28, 32, 38 and 42 GHz bands
* Requires new HW revision state of MMU2 H
planned for 4.4

36. © Ericsson AB 2007 LZU 108 6895 R1A Figure 1- MINI-LINK TN System Description
35