EBYTE MT7621A Alailowaya Module olumulo

MT7621A Alailowaya Module

Awọn pato

• Ọja Name: EWM103-WF7621A
• Alailowaya Module: MT7621A
• Olupese: Chengdu Ebyte Electronic Technology Co.,
  Ltd.
• Chip mojuto: MediaTek MT7621A
• Ilana: Meji-mojuto MIPS-1004Kc (880MHz)
• Kaṣe: 32 KB I-Cache ati 32 KB D-cache fun mojuto, 256kb L2 kaṣe
  pín nipa meji ohun kohun
• Atilẹyin Eto Ṣiṣẹ: OpenWrt
• Awọn atọkun: 5-ibudo GbE yipada

Ọja Pariview

1. Ifihan ọja

EWM103-WF7621A ni a Gigabit afisona ẹnu module ni idagbasoke
nipasẹ Chengdu Ebyte Electronic Technology Co., Ltd. O ṣe ẹya naa
MediaTek MT7621A ni ërún bi ipilẹ rẹ, pẹlu MIPS-1004Kc-meji kan
isise nṣiṣẹ ni 880MHz. Awọn module integrates orisirisi
accelerators ati ki o kan 5-ibudo GbE yipada, atilẹyin OpenWrt
ẹrọ ṣiṣe fun idagbasoke aṣa. O dara fun ọlọgbọn
awọn ẹrọ, awọn ohun elo iṣẹ awọsanma, ati idagbasoke keji.

2. Awọn ẹya ara ẹrọ

• MIPS1004Kc ti a fi sinu (880 MHz, meji-mojuto)
• 32 KB I-kaṣe ati 32 KB D-kaṣe fun mojuto
• 256kb L2 kaṣe pín nipasẹ awọn ohun kohun meji
• Iṣẹ SMP
• Configurable nikan isise isẹ

Awọn ilana Lilo ọja

6. Awọn ilana iṣẹ alurinmorin

6.1 Atunse otutu

Tẹle awọn niyanju reflow otutu pato ninu awọn
ọja datasheet lati rii daju to dara soldering ti module.

6.2 Atunse adiro ti tẹ

Tọkasi si atunse adiro ti a pese ni ọja naa
iwe fun awọn ti o tọ otutu profile nigba ti
soldering ilana.

Awọn Ibeere Nigbagbogbo (FAQ)

5.1 Ijinna Gbigbe ko dara julọ

Ti o ba ni iriri awọn ọran pẹlu ijinna gbigbe,
rii daju pe ko si awọn idena laarin module alailowaya
ati awọn ẹrọ ti a ti sopọ. Ni afikun, ṣayẹwo fun kikọlu
lati awọn ẹrọ itanna miiran.

5.2 Awọn modulu jẹ ipalara si ibajẹ

Lati se ibaje si awọn module, mu wọn pẹlu abojuto nigba
fifi sori ẹrọ ati yago fun fifi wọn han si ooru pupọ tabi ọrinrin.
Tẹle awọn iṣọra ESD to dara nigba ṣiṣẹ pẹlu itanna
irinše.

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EWM103-WF7621A olumulo Afowoyi
MT7621A alailowaya module

Chengdu Ebyte Electronic Technology Co., Ltd.

EWM103-WF7621A olumulo Afowoyi

Awọn akoonu

MT7621A Ailokun MODULE …………………………………………………………………………………………………………………………………………………………………

ALAYE …………………………………………………………………………………………………………………………………………………………………………………………………………………………

1 ỌJỌ ỌJỌVIEW ……………………………………………………………………………………………………………………………………… .. 1
1.1 Ọ̀RỌ̀ ÌRÁNTÍ…………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………
2 Awọn NI pato …………………………………………………………………………………………………………………………………………………………………………………………
2.1 Ipilẹ APARAMETER………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………
5 IBEERE TI A MAA BERE Nigbagbogbo ………………………………………………………………………………………………………………………………………………….
5.1 Ijinna Gbigbe ko dara …………………………………………………………………………………………………………………………………………………..9
6 Awọn itọnisọna Isẹ iṣẹ alurinmorin ………………………………………………………………………………………………………… 10
6.1 ÌGBÀ TÒÓTỌ́…………………………………………………………………………………………………………………………
ITAN Àtúnyẹ̀wò …………………………………………………………………………………………………………………………………………………………. 11

NIPA RE …………………………………………………………………………………………………

Chengdu Ebyte Electronic Technology Co., Ltd.

AlAIgBA

EWM103-WF7621A olumulo Afowoyi

Alaye inu iwe yii, pẹlu awọn URL adirẹsi fun itọkasi, jẹ koko ọrọ si ayipada lai akiyesi. Awọn iwe aṣẹ ti pese “bi o ti ri” laisi atilẹyin ọja eyikeyi, pẹlu atilẹyin ọja eyikeyi ti iṣowo, amọdaju fun idi kan tabi aisi irufin, ati atilẹyin ọja eyikeyi tọka si ibomiiran ti eyikeyi imọran, sipesifikesonu tabi s.ampIwe yii ko ni ojuse eyikeyi, pẹlu ojuse fun eyikeyi irufin itọsi ti o ṣẹlẹ nipasẹ lilo alaye ti o wa ninu iwe yii. Iwe yii ko funni ni iwe-aṣẹ eyikeyi fun lilo ohun-ini imọ nipasẹ estoppel tabi bibẹẹkọ, boya han tabi mimọ.

Awọn data ti o wa ninu iwe yii jẹ gbogbo lati ile-iṣẹ Ebyte, ati pe awọn abajade gangan le jẹ iyatọ diẹ.

O ti kede bayi pe gbogbo awọn orukọ iṣowo, awọn aami-iṣowo ati awọn aami-iṣowo ti a forukọsilẹ ti a mẹnuba nibi jẹ ohun-ini ti awọn oniwun wọn.

Ẹtọ itumọ ikẹhin jẹ ti Chengdu Ebyte Electronic Technology Co., Ltd.
Akiyesi:
Awọn akoonu inu iwe afọwọkọ yii le yipada nitori iṣagbega ẹya ọja tabi awọn idi miiran. Ebyte Electronic Technology Co., Ltd ni ẹtọ lati ṣe atunṣe awọn akoonu inu iwe afọwọkọ yii laisi akiyesi eyikeyi tabi kiakia. Iwe afọwọkọ yii jẹ itọsọna nikan. Chengdu Ebyte Electronic Technology Co., Ltd. yoo gbiyanju ohun ti o dara julọ lati pese alaye deede ni afọwọṣe yii. Sibẹsibẹ, Chengdu Ebyte Electronic Technology Co., Ltd.

Aṣẹ-lori-ara © 2012, Chengdu Ebyte Electronic Technology Co., Ltd.

Chengdu Ebyte Electronic Technology Co., Ltd.
1 Ọja Loriview

EWM103-WF7621A olumulo Afowoyi

1.1 ọja Ifihan
a Gigabit afisona ẹnu module ni idagbasoke nipasẹ Chengdu Ebyte Electronic Technology Co., Ltd. pẹlu MediaTek MT76 21A ërún bi awọn mojuto. Awọn module integrates dual-mojuto MIPS-1004Kc (880MHz), HNAT/HQoS/Samba/VPN ohun imuyara ati 5-ibudo GbE yipada, atilẹyin OpenWrt ẹrọ ati aṣa idagbasoke, ni o ni ọlọrọ atọkun ati awọn alagbara to nse, le wa ni o gbajumo ni lilo ni smati awọn ẹrọ tabi awọsanma iṣẹ ohun elo, ati ki o le wa ni larọwọto ni idagbasoke fun Atẹle idagbasoke.

olusin 1: EWM103-WF7621A
1.2 Awọn ẹya ara ẹrọ
MIPS1004Kc ti a fi sinu (880 MHz, meji-mojuto) 32 KB I-cache ati 32 KB D- Kaṣe fun mojuto 256kb L2 kaṣe (pín nipasẹ awọn ohun kohun meji) Iṣẹ SMP atunto iṣẹ ero isise ẹyọkan
Awọn ebute oko oju omi Gigabit Yipada 5, nṣiṣẹ ni iyara laini kikun 5-ibudo 10/100/1000Mbps transceiver MDI
Atilẹyin RGMII/MII ni wiwo 16-bit DDR2/3, agbara soke to 256/512 Mbytes SPI (2 ërún yan), NAND Flash (SLC), SDXC, eMMC (4 die-die) USB3.0 ni wiwo × 1 + USB2.0 ni wiwo × 1 tabi USB2.0 ni wiwo × 2 (mejeji ni o wa ogun ni wiwo, 3 I × 2 ogun ni wiwo PCIe) PCIe × 3 alejo gbigba.TAG , MDC , MDIO , GPIO Atilẹyin Awọn ipe ohun Intanẹẹti (I2S, PCM) wiwo ohun (SPDIF-Tx, I2S, PCM)

Aṣẹ-lori-ara © 2012 20, Chengdu Ebyte Electronic Technology Co., Ltd.

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Chengdu Ebyte Electronic Technology Co., Ltd.

EWM103-WF7621A olumulo Afowoyi

Pese iṣẹ Samba ti o dara julọ nipasẹ USB2.0/USB 3.0/SD-XC HW Accelerator Ibi ipamọ HW NAT
Oṣuwọn gbigbe ti firanṣẹ to 2Gbps L2 Afara IPv4 afisona, NAT, NAPT IPv6 afisona, DS-Lite, 6RD, 6to4 HW QoS 16 awọn ila ohun elo lati ṣe iṣeduro iwọn bandiwidi ti o kere julọ / o pọju fun ṣiṣan kọọkan. Le ṣiṣẹ lainidi pẹlu ẹrọ HW NAT. Oṣuwọn gbigbe ti firanṣẹ le de ọdọ 2Gbps. HW ìsekóòdù IPSec losi le de ọdọ 400 ~ 500mbps
Atunṣe aago Smart Green (isọsọtọ)
DDR2/3: ODT ni pipa, ipo isọdọtun ara ẹni famuwia: OpenWRT RGMII iNIC Awakọ: Linux 2.4/2.6

1.3 Awọn oju iṣẹlẹ Ohun elo
Wifi fidio gbigbe; Gbigbe ohun afetigbọ WiFi; olulana; Wifi atunṣe; Gbigbe ibudo ni tẹlentẹle ati awọn modulu idi-gbogboogbo miiran fun awọn ile ọlọgbọn; Awọsanma Service Ohun elo IoT Gateway;

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2 Awọn pato

2.1 Awọn ipilẹ ipilẹ

Itanna paramita

ẹyọkan

Iwọn iṣẹtage

V

Ipele ibaraẹnisọrọ

Ipese lọwọlọwọ ibeere

Ṣiṣẹ

otutu otutu
Ibi ipamọ

otutu

ọriniinitutu

lo ipamọ

V mA
%RH

Awọn alaye paramita
3.3V 3.3 5 00 -20 + 60
-40 + 8 5 10 95ti kii-condensing
5 95 (ko si isunmi)

EWM103-WF7621A olumulo Afowoyi
Ifojusi ti o kọja 3.5 V le jona patapata
module Lilo 5V TTL le sun jade
–

2.2 Hardware paramita

Hardware paramita
ërún Flash Memory ekuro Packaging
Ethernet ni wiwo
UART Lite PCIe USB iwọn iwọn

awoṣe
MT7621A 32MB
DDR3 128MB MIPS1004Kc
Awọn abulẹ
5 10M / 100 / 1000M aṣamubadọgba
3-Ọna 3 -Ọna USB3.0×1+USB2.0×1 tabi USB2.0×2 50*50*3mm 11.1g

Akiyesi
Asefara 16MB/8MB DDR3 256M/64M/32MB
880 MHz, mojuto meji –
Famuwia aiyipada ile-iṣẹ ṣe atilẹyin 1 WAN ati awọn atọkun LAN 4. Mejeji jẹ awọn atọkun ogun Iwọn aṣiṣe jẹ ± 0.2mm Aṣiṣe jẹ ± 0.2g

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2.3 Iṣẹ-ṣiṣe Àkọsílẹ aworan atọka

EWM103-WF7621A olumulo Afowoyi

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Chengdu Ebyte Electronic Technology Co., Ltd.
3 Mechanical Mefa ati Pin Definition

EWM103-WF7621A olumulo Afowoyi

Itumọ PIN: Nọmba ni tẹlentẹle 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Orukọ Pin
3.3VD 3.3VD 3.3VD 3.3VD GND GND GND GND CTS3_N TXD2 RXD2 TXD3 RXD3 RTS2_N CTS2_N RTS3_N

olusin 2 EWM103-WF7621A
Pin Iṣẹ-ṣiṣe Pin
ipese agbara ipese agbara ipese agbara
Ilẹ ilẹ ilẹ UART Clear Lati Firanṣẹ UART TX Data UART RX Data UART TX Data UART RX Data UART Ibere ​​Lati Fi UART Ko o Lati Firanṣẹ UART Ibere ​​Lati Firanṣẹ

Išẹ aiyipada
–
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17 18 19 20 òkànléláàdọ́rùn-ún méjìlélógún ó lé mẹ́rìnlélógún
25

USB_DP_1P USB_DM_1P
GND SSUSB_TXP SSUSB_TXN
SSUSB_RXP
SSUSB_RXN
GND
USB_DP_P0

26

USB_DM_P0

27

GND

28

ESW_TXVP_A_P0

29

ESW_TXVN_A_P0

30

ESW_TXVP_B_P0

31

ESW_TXVN_B_P0

32

ESW_TXVP_C_P0

33

ESW_TXVN_C_P0

34

ESW_TXVP_D_P0

35

ESW_TXVN_D_P0

36

ESW_TXVP_A_P1

37

ESW_TXVN_A_P1

38

ESW_TXVP_B_P1

39

ESW_TXVN_B_P1

40

ESW_TXVP_C_P1

41

ESW_TXVN_C_P1

42

ESW_TXVP_D_P1

43

ESW_TXVN_D_P1

44

GND

45

ESW_TXVP_A_P2

46

ESW_TXVN_A_P2

47

ESW_TXVP_B_P2

48

ESW_TXVN_B_P2

49

ESW_TXVP_C_P2

50

ESW_TXVN_C_P2

51

ESW_TXVP_D_P2

52

ESW_TXVN_D_P2

53

GND

USB Port1 data pin Data+ (USB2.0) USB Port1 data pin Data- (USB2.0)
ilẹ USB Port0 SS data pin TX+ (USB3.0)
USB Port0 SS data pin TX- (USB3.0)
USB Port0 SS data pin RX+ (USB3.0)
USB Port0 SS data pin RX+-(USB3.0)
ilẹ
SB Port0 HS/FS/LS data pin Data+ (USB3.0)
USB Port0 HS/FS/LS data pin Data (USB3.0) ilẹ
Port #0 MDI Transceivers Port #0 MDI Transceivers Port #0 MDI Transceivers Port #0 MDI Transceivers Port #0 MDI Transceivers Port #0 MDI Transceivers Port #0 MDI Transceivers Ibudo Port # 0 MDI Transceivers Port # 1 MDI Transceivers Port # 1 MDI Transceivers
Orile-ede Port #2 MDI Transceivers Port #2 MDI Transceivers Port #2 MDI Transceivers Port #2 MDI Transceivers Port #2 MDI Transceivers Port #2 MDI Transceivers Port #2 MDI Transceivers Port #2 MDI Transceivers Port
ilẹ

EWM103-WF7621A olumulo Afowoyi
–
–
–
–
–
–
–
–

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Chengdu Ebyte Electronic Technology Co., Ltd.

54

ESW_TXVP_A_P3

55

ESW_TXVN_A_P3

56

ESW_TXVP_B_P3

57

ESW_TXVN_B_P3

58

ESW_TXVP_C_P3

59

ESW_TXVN_C_P3

60

ESW_TXVP_D_P3

61

ESW_TXVN_D_P3

62

GND

63

ESW_TXVP_A_P4

64

ESW_TXVN_A_P4

65

ESW_TXVP_B_P4

66

ESW_TXVN_B_P4

67

ESW_TXVP_C_P4

68

ESW_TXVN_C_P4

69

ESW_TXVP_D_P4

70

ESW_TXVN_D_P4

71

ESW_P4_LED_0

72

ESW_P3_LED_0

73

ESW_P2_LED_0

74

ESW_P1_LED_0

75

ESW_P0_LED_0

76

ESW_DTEST

77

GE2_TXD3

78

GE2_TXD2

79

GE2_TXD1

80

GE2_TXD0

81

ESW_DBG_B

82

MIDIO

83

MDC

84

GE2_TXEN

85

GE2_TXCLK

86

GE2_RXD3

87

GE2_RXD2

88

GE2_RXD1

89

GE2_RXD0

90

GE2_RXDV

Port #3 MDI Transceivers Port #3 MDI Transceivers Port #3 MDI Transceivers Port #3 MDI Transceivers Port #3 MDI Transceivers Port #3 MDI Transceivers Port #3 MDI Transceivers Port #3 MDI Transceivers Port
Port Port #4 MDI Transceivers Port #4 MDI Transceivers Port #4 MDI Transceivers Port #4 MDI Transceivers Port #4 MDI Transceivers Port #4 MDI Transceivers Port #4 MDI Transceivers Port #4 MDI Transceivers Port #4 MDI Transceivers Port #3 Awọn afihan PHY Awọn afihan Port #2 PHY LED Atọka Port #1 PHY
Idanwo oni-nọmba RGMII2 Tx Data bit #0 RGMII2 Tx Data bit #2 RGMII2 Tx Data bit #1 RGMII2 Tx Data bit #0
–
PHY Data Isakoso
PHY Aago Isakoso
RGMII2 Tx Data Wulo RGMII2 Tx Aago
RGMII2 Rx Data bit #3 RGMII2 Rx Data bit #2 RGMII2 Rx Data bit #1 RGMII2 Rx Data bit #0 RGMII2 Rx Data Wulo

EWM103-WF7621A olumulo Afowoyi
Akiyesi: Nigbati RGMII/MII ba ti sopọ si PHY ita, pin yii jẹ MDIO. Bibẹkọkọ o jẹ NC. Akiyesi: Nigbati RGMII/MII ba ti sopọ si PHY ita, pin yii jẹ MDC. Bibẹkọkọ o jẹ NC. –

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91

GE2_RXCLK

92

GND

93

RXD1

94

TXD1

95

PORST_N

96

I2C_SCLK

97

I2C_SD

98

PCIE_TXN2

99

PCIE_TXP2

100

PCIE_RXN2

101

PCIE_RXP2

102

PCIE_CKN2

103

PCIE_CKP2

104

GPIO0

105

PERST_N

106

PCIE_TXP1

107

PCIE_TXN1

108

PCIE_RXP1

109

PCIE_RXN1

110

PCIE_CKN1

111

PCIE_CKP1

112

WDT_RST_N

113

PCIE_RXP0

114

PCIE_RXN0

115

PCIE_TXN0

116

PCIE_TXP0

117

PCIE_CKP0

118

PCIE_CKN0

119

GND

120

JTMS

121

JTDO

122

JTDI

123

JTRST_N

124

JTCLK

125

GND

126

ND_D7

127

ND_D6

128

ND_D5

129

ND_D4

130

ND_D3

131

ND_D2

132

ND_D1

133

ND_D0

RGMII2 Rx Aago ilẹ
UART TX Data UART RX Data Power-Lori Tun
I2C Aago I2C Data PCIE2_TX PCIE2_TX+ PCIE2_RX PCIE2_RX+ PCIE2_CLK PCIE2_CLK+
PCIE PCIE1_TX+ PCIE1_TX PCIE1_RX+ PCIE1_RX PCIE1_CLK PCIE1_CLK+ NC PCIE0_RX+ PCIE0_RX PCIE0_TX PCIE0_TX+ PCIE0_CLK+ PCIE0_CLK ilẹ JTAG Ipo Yan JTAG Ijade data JTAG Iṣagbewọle data JTAG Atunto ibi-afẹde JTAG Ilẹ aago NAND Flash Data7 NAND Flash Data6 NAND Flash Data5 NAND Flash Data4 NAND Flash Data3 NAND Flash Data2 NAND Flash Data1 NAND Flash Data0

EWM103-WF7621A olumulo Afowoyi
–
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Chengdu Ebyte Electronic Technology Co., Ltd.

134

ND_RB_N

135

ND_RE_N

136

ND_CS_N

137

ND_CLE

138

ND_ALE

139

ND_WE_N

140

ND_WP

Filaṣi NAND Ṣetan/Nṣiṣẹ NAND Filaṣi kika Muu ṣiṣẹ NAND Flash Chip Yan NAND Flash Command Latch Mu NAND Flash ALE Latch Mu NAND Flash Kọ ṣiṣẹ Mu NAND Flash Kọ Idaabobo ṣiṣẹ

5 Awọn ibeere Nigbagbogbo

EWM103-WF7621A olumulo Afowoyi
–

5.1 Ijinna gbigbe ko dara julọ
Nigbati idiwo ibaraẹnisọrọ laini taara ba wa, ijinna ibaraẹnisọrọ yoo dinku ni ibamu; Iwọn otutu, ọriniinitutu, ati kikọlu-ikanni le ṣe alekun oṣuwọn isonu soso ibaraẹnisọrọ; Ilẹ naa n gba ati ki o ṣe afihan awọn igbi redio, nitorina awọn abajade idanwo ko dara nigbati o sunmọ ilẹ; Omi okun ni agbara to lagbara lati fa awọn igbi redio, nitorina ipa idanwo ni eti okun ko dara; Ti awọn nkan irin ba wa nitosi eriali, tabi eriali ti gbe sinu ikarahun irin, idinku ifihan yoo jẹ.
pataki pupọ; Iforukọsilẹ agbara ti ṣeto ti ko tọ, tabi a ti ṣeto iwọn afẹfẹ ti o ga ju (ti o ga julọ oṣuwọn afẹfẹ, sunmọ ijinna); Ipese agbara voltage kere ju iye ti a ṣe iṣeduro ni iwọn otutu yara. Isalẹ awọn voltage, awọn
dinku iṣelọpọ agbara. Eyi fa ibaamu ti ko dara laarin eriali ati module tabi awọn ọran didara pẹlu eriali funrararẹ.
5.2 Awọn modulu jẹ ipalara si ibajẹ
Jọwọ ṣayẹwo ipese agbara lati rii daju pe o wa laarin awọn iṣeduro agbara agbara voltage. Ti o ba kọja iye ti o pọju, module naa yoo bajẹ patapata.
Jọwọ ṣayẹwo iduroṣinṣin ti ipese agbara. Awọn voltagko yẹ ki o yipada pupọ tabi nigbagbogbo. Jọwọ rii daju pe iṣiṣẹ anti-aimi lakoko fifi sori ẹrọ ati lilo, bi awọn paati igbohunsafẹfẹ giga ṣe ifarabalẹ si aimi
itanna; Jọwọ rii daju pe ọriniinitutu ko ga ju lakoko fifi sori ẹrọ ati lilo, nitori diẹ ninu awọn paati jẹ ọriniinitutu
awọn ẹrọ ifura; Ti ko ba si ibeere pataki, a ko ṣe iṣeduro lati lo ni iwọn otutu ti o ga ju tabi kekere ju.

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6 Awọn ilana iṣẹ alurinmorin

EWM103-WF7621A olumulo Afowoyi

6.1 Atunse iwọn otutu

Atunse profile abuda

Iwọn otutu ti o kere julọ

Preheating / fifipamọ

( Tsmin ) Iwọn otutu ti o pọju
(T smax)

Apejọ ilana idari 100 150

Apejọ laisi asiwaju 150 200

Akoko (T smin ~ T smin)

60-120 aaya

60-120 aaya

Igi alapapo (TL ~ T p)

3/aaya, o pọju.

3/aaya, o pọju.

Liquidus otutu (TL)

183

217

TL loke akoko idaduro

60 ~ 90 aaya

60 ~ 90 aaya

Awọn olumulo ko gbọdọ kọja awọn olumulo ko gbọdọ kọja awọn

Package tente otutu Tp

iwọn otutu ti a sọ lori iwọn otutu ti a sọ lori ọja “Imọra Ọrinrin” ọja naa “Ifarabalẹ Ọrinrin”

aami.

aami.

p) laarin 5°C ti pato

otutu classification (Tc) han

20 aaya

30 aaya

ninu aworan ni isalẹ.

Ite tutu (T p ~ TL)

6/aaya, o pọju.

6/aaya, o pọju.

Akoko lati iwọn otutu yara si tente oke

Awọn iṣẹju 6, gun julọ

Awọn iṣẹju 8, gun julọ

otutu

Ifarada iwọn otutu ti o ga julọ (Tp) ti tẹ iwọn otutu jẹ asọye bi opin oke ti olumulo

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