AS 38/ASN 38Addendum

User manual

MN.00236.E - 004Volume 1/1

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AS 38/ASN 38 - MN.00236.E - 004 1

Summary

Section 1.AS 38/ASN 38 CHARACTERISTICS 3

1 CHARACTERISTICS.................................................................................................... 3

1.1 FOREWORD ...................................................................................................... 3

1.2 CHARACTERISTICS ............................................................................................ 3

1.2.1 Versions ................................................................................................. 3

1.2.2 Available frequencies................................................................................ 4

1.2.3 Characteristics in Tx................................................................................. 5

1.2.4 Characteristics in Rx................................................................................. 6

1.2.5 Characteristics of power supply and consumption ......................................... 6

1.2.6 Hybrids .................................................................................................. 7

1.2.7 Flange of the waveguide ........................................................................... 7

1.2.8 Dimensions and weights ........................................................................... 7

Section 2.LIST OF TABLES 9

2 LIST OF TABLES ........................................................................................................ 9

2 AS 38/ASN 38 - MN.00236.E - 004

AS 38/ASN 38 - MN.00236.E - 004 3

Section 1.AS 38/ASN 38 CHARACTERISTICS

1 CHARACTERISTICS

1.1 FOREWORD

The equipment is in compliance with the following standards:

• EN 301 489-4 for EMC

• ITU-R Rec. F749 and CEPT/ERC Recommendation TR 12-01 (go-return 1260 MHz)

• EN 302 217 for fixed digital radio links

• EN 300 132-2 power supply characteristics

• EN 300 019 climatic characteristics (in operation: class 3.2 for IDU and class 4.1 for ODU; storing:class 1.2; transport: class 2.3)

• EN 60950 for the operator safety.

1.2 CHARACTERISTICS

The reported values are guaranteed if not specifically defined otherwise.

1.2.1 Versions

Two versions of ODU are available: ODU AS and ODU ASN. The two versions are similar. Differencies willbe pointed out. Regarding ODU ASN, the units without isolator have SIAE code GE9xxx, the units withisolator have SIAE code GE8xxx.

4 AS 38/ASN 38 - MN.00236.E - 004

RF loop is available for ODU AS. An equivalent feature is available on request for ODU ASN.

1.2.2 Available frequencies

- Frequency band from 37.0 to 39.5 GHz (see Tab.1) according toITU-R F.749 and Rec. CEPT/ERC T/R 12-01

- Duplex Spacing (Go/Return) 1260MHz (see Tab.1)

- Modulation 4QAM/8PSK/16QAM/32QAM/64QAM/128QAM/256QAM

- Capacity and channel spacing see Tab.2

- Transmitter tuning interval 38 GHz band is divided in various subbands depending on Go/Return (see Tab.3)

Tab.1 - RF frequency range

Tab.2 - Capacity and channel spacing

Referring to ITU-R Rec. F.479 Annex 1 and CEPT T/R 12-01 (f0= 38248 MHz) available frequency channelsare shown in Tab.3.

Tab.3 - Frequency of the channels for each sub-band

Frequency range: 38318 - 39438 MHz - Go-return: 1260 MHzITU-R F.749 and CEPT REC T/R 12-01 - f0=38248 MHz

Sub Band Low half Limits (MHz) Upper half Limits (MHz) RF Filter Tuning Range

1 37058 - 37618 38318 - 38878560

2 37618 - 38178 38878 - 39438

Modulation typeChannel spacing (MHZ)

7 14 28 56

4QAMs 8.376 17.251 35.294 71.099

4QAM 10.44 20.782 41.609 82.752

8PSK 14.661 29.105 62.08 123.96

16QAM 21.044 41.532 82.661 165.168

32QAM 24.966 51.866 103.629 201.639

64QAM 31.428 62.171 124.267 240.04

128QAM 35.386 72.396 144.606 286.376

256QAM 41.708 85.138 169.95 341.131

Frequency range: 38318 - 39438 MHz - Go-return: 1260 MHzITU-R F.749 and CEPT REC T/R 12-01 - f0=38248 MHz

Sub band 1

Channel spacing (MHz)

Lower half of the band Upper half of the bandAvailable channels

7 fn=f0-1193.5+7n f’n=f0+66.5+7n n=1,..,80

14 fn=f0-1197+14n f’n=f0+63+14n n=1,...,40

28 fn=f0-1204+28n f’n=f0+56+28n n=1,...,20

AS 38/ASN 38 - MN.00236.E - 004 5

1.2.3 Characteristics in Tx

- Maximum output power in dBm see Tab.4

- Tx band see Tab.1 and Tab.3

- Tuning step according with ITU-R/CEPT or in steps of 500kHz

- Maximum attenuation

- ODU AS 40dB in steps of 1dB (can be set via software)

- ODU ASN 20dB 1 in steps of 1dB (can be set via software)

- Attenuation accuracy

- range 0 ÷ 3dB ±1dB (±2dB ASN)

- range 4 ÷ 30dB ±2dB

- range 31 ÷ 40dB ±3dB

- Automatic Transmit Power Control (ATPC)

- ODU AS 40dB in steps of 1dB

- ODU ASN 20dB in steps of 1dB

- Remote Transmit Power Control (RTPC)

- ODU AS 30dB (the amount of attenuation used for theRTPC reduces the ATPC range)

- ODU ASN 20dB (the amount of attenuation used for theRTPC reduces the ATPC range)

- Spurious in Tx according to ETSI EN 301 390

- Stability in frequency ±5ppm, (±10ppm with aging)

- Muting 60dB, related to maximum transmitted power

Tab.4 - Nominal output power in dBm (rated values at point C-C’ for 1+0 configuration)

56 fn=f0-1218+56n f’n=f0+42+56n n=1,...,10

Sub band 2

Channel spacing (MHz)

Lower half of the band Upper half of the bandAvailable channels

7 fn=f0-1193.5+7n f’n=f0+66.5+7n n=81,..,160

14 fn=f0-1197+14n f’n=f0+63+14n n=41,...,80

28 fn=f0-1204+28n f’n=f0+56+28n n=21,...,40

56 fn=f0-1218+56n f’n=f0+42+56n n=11,...,20

1 In case of fade margin test other 15dB are available.

ODUModulation

Stability 4QAMs 4QAM 8PSK 16QAM 32QAM 64QAM 128QAM 256QAM

AS 19 19 19 17 17 15 15 14 ±1 dB a

a. With ACM, the power stability for the reference modulation will be ±1dB. With ACM, for the modulationschemes different than the reference one, the power stability will be +2/-1dB.

ASN 19 19 19 17 17 15 15 14 ±2 dB b

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1.2.4 Characteristics in Rx

- Rx band see Tab.1 and Tab.3

- Sensitivity in dBm @10-6 at point C - C’ (1+0) see Tab.5

- Spurious in Rx according to ETSI EN 301 390

- Accuracy of Rx level indication @25° C ±2dB in the range -22dBm ÷ threshold

- Maximum power in Rx for BER=10-6 -22dBm

- Residual BER (RBER) ≤ 1x10-12

Tab.5 - Guaranteed threshold (in dBm) for BER=10-6 and for BER=10-10

Typical threshold is 2 dB lower.

1.2.5 Characteristics of power supply and consumption

- Power supply voltage (nominal -48 Vdc) -40.8 ÷ -57.6 Vdc 2

- ODU consumption ≤ 25 W (-48Vdc at the voltage)

- IMAX and consumption see Tab.6

b. With ACM, the power stability for the reference modulation will be ±2dB. With ACM, for the modulationschemes different than the reference one, the power stability will be +3/-2dB.

Channel spa-cing (MHz)

BER 4QAMs 4QAM 8PSK 16QAM 32QAM 64QAM 128QAM 256QAM

7BER=10-6 -90 -86 -83.5 -80.5 -78 -75.5 -74 -71

BER=10-10 -88 -84 -81.5 -78.5 -76 -73.5 -72 -69

14BER=10-6 -87.5 -85.5 -81.5 -79 -75.5 -73.5 -71 -68

BER=10-10 -85.5 -83.5 -79.5 -77 -73.5 -71.5 -69 -66

28BER=10-6 -84.5 -83 -77.5 -76 -72.5 -70.5 -68.5 -65.5

BER=10-10 -82.5 -81 -75.5 -74 -70.5 -68.5 -66.5 -63.5

56BER=10-6 -82 -80.5 -75 -74 -70.5 -69 -66 -62.5

BER=10-10 -80 -78.5 -73 -72 -68.5 -67 -64 -60.5

2 -48.8 ÷ -72 Vdc is also available on request. The range -20.4 ÷ -28.8 is available with external DC-DCconverter

AS 38/ASN 38 - MN.00236.E - 004 7

Tab.6 - IMAX at the power supply connector and consumption with 1/4” IDU-ODU cable (300m long)

In ALCplus2 1+1 (all version) the two power connectors are in parallel.

1.2.6 Hybrids

The ODU units of a 1+1 system with single antenna are coupled to the antenna by means of an hybrid,available in different versions, whose branching losses are listed here below.

- 1+1 hot stand-by

- balanced hybrid Tx losses ≤ 4 dBRx losses ≤ 4 dB

- unbalanced hybrid Tx losses ≤ 1.9/7 dBRx losses ≤ 1.9/7 dB

- 1+1 freq. div. (only with double polariz. antenna) negligible losses

- 1+1 with double antenna negligible losses

- 2+0 with double antenna negligible losses

1.2.7 Flange of the waveguide

- Type of flange of the waveguide (radio side): UBR 320

1.2.8 Dimensions and weights

- Physical size of system components see Tab.7

ODU type IDU type Config.Typical power consumption a

(W)

a. The typical values are achieved with 48 Vdc of input power voltage. For ALCplus2 IDU the power consumptionrefers to the equipment loaded with traffic on Ethernet and 16xE1 interfaces. For ALCplus2 the power consumptionrefers to the IDU with Ethernet and 16xE1 interfaces fully loaded.

Guaranteed pow-er consumption

(W)

IMAX (@40Vdc) at power connec-

tor (A)

AS

ALCplus2 - 1RU1+0 58 ≤ 66.5 1.66

1+1 89 ≤ 101 2.51

ALplus2 - 1RU

1+0 66 ≤ 75.5 1.88

1+1 97 ≤ 110 1.38

2x(1+0) 97 ≤ 110 1.38

ASN

ALCplus2 - 1RU1+0 51 ≤ 59.5 1.48

1+1 75 ≤ 87 2.17

ALplus2 - 1RU

1+0 59 ≤ 68.5 1.71

1+1 83 ≤ 96 1.2

2x(1+0) 83 ≤ 96 1.2

8 AS 38/ASN 38 - MN.00236.E - 004

Tab.7 - Physical size of system components

- Weight of system components

- ODU 1+0 ASN ODU/AS ODU versions 4.5 kg/5.5 kg

- ODU 1+1 ASN ODU/AS ODU versions 13.3 kg/15.3 kg

- Panning systen 1+0/1+1 4.4 kg.

Width (mm) Height (mm) Depth (mm)

ODU 1+0 ASN ODU version 254 254 114

ODU 1+0 AS ODU version 254 254 154

ODU 1+1 ASN ODU version a

a. Including passive hybrid

278 254 296

ODU 1+1 AS ODU version a. 358 254 296

AS 38/ASN 38 - MN.00236.E - 004 9

Section 2.LIST OF TABLES

2 LIST OF TABLES

Tab.1 - RF frequency range .............................................................................................. 4

Tab.2 - Capacity and channel spacing ................................................................................ 4

Tab.3 - Frequency of the channels for each sub-band........................................................... 4

Tab.4 - Nominal output power in dBm (rated values at point C-C’ for 1+0 configuration).......... 5

Tab.5 - Guaranteed threshold (in dBm) for BER=10-6 and for BER=10-10 .........................................6

Tab.6 - IMAX at the power supply connector and consumption with 1/4” IDU-ODU cable (300m long)7

Tab.7 - Physical size of system components ........................................................................ 8

10 AS 38/ASN 38 - MN.00236.E - 004