Patch kaablid

Toote parameetrid

Laos (15840)
Näita kõiki (26827)
Tootja
Lanberg (673)DIGITUS (556)Gembird (78)Secomp (1436)Deltaco (365)PremiumCord (183)StarTech (280)MicroConnect (275)EFB-Elektronik (1732)Ubiquiti Networks (87)2direct (354)
Pikkus
 - 
15mm (1) 2.1cm (1) 10cm (8) 0.15m (2) 15cm (175) 20cm (9) 0.25m (13) 25cm (427) 0.3m (2) 30cm (203) 35cm (1) 45cm (7) 0.5m (60) 50cm (901) 60cm (2) 70cm (10) 75cm (16) 91cm (3) 91.4cm (1) 100cm (1) 1m (1114) 1.2m (2) 1.5m (588) 1.52m (2) 1.8m (2) 1.83m (1) 2m (1108) 2.1m (3) 2.4m (1) 2.5m (6) 250cm (1) 2.7m (2) 3m (1068) 3.1m (3) 4m (15) 4.9m (5) 5m (1043) 6m (1) 6.1m (1) 7m (167) 7.5m (431) 7.6m (2) 8m (13) 9.8m (1) 10m (785) 12m (2) 15m (501) 1500cm (1) 15.2m (2) 20m (496) 25m (162) 30m (252) 35m (7) 40m (41) 45m (2) 50m (98) 60m (8) 70m (4) 75m (3) 80m (3) 90m (7) 100m (6) 305m (2) 500m (1)
Kaabli kategooria
CAT 5 (6) CAT 5/5e (17) CAT 5/5e/6 (90) CAT 5/5e/6/6a/8 (12) CAT 5e (1241) CAT 6 (3508) CAT 6a (4001) CAT 6a Platinum (4) CAT 6a/7 (2) CAT 6e (192) CAT 7 (364) CAT 7 (cable) / CAT 6a (connectors) (613) CAT 8 (15) CAT 8.1 (325) CAT 8.1 (cable) / CAT 6a (connectors) (1)
Hind
 - 
  EUR
Rakenda
Ennista
Patch kaablid – – IBEBK
Vention - Patch cable - RJ-45 (M) to RJ-45 (M) - 8 m - 5.5 mm - UTP - CAT 6 - molded, snagless, stranded - black
Tootekood
IBEBK
Patch kaablid – – IBEBK Vention - Patch cable - RJ-45 (M) to RJ-45 (M) - 8 m - 5.5 mm - UTP - CAT 6 - molded, snagless, stranded - black
Tootekood
IBEBK
Ladu Kogus Tarne Hind
LV025   50 E 20.04 7,20
Patch kaablid – – IKABF
Vention - Patch cable - RJ-45 (M) to RJ-45 (M) - 1 m - SFTP - CAT 8 - snagless - black
Tootekood
IKABF
Patch kaablid – – IKABF Vention - Patch cable - RJ-45 (M) to RJ-45 (M) - 1 m - SFTP - CAT 8 - snagless - black
Tootekood
IKABF
Ladu Kogus Tarne Hind
LV025   100 E 20.04 7,14
Patch kaablid – – IKABH
Vention - Patch cable - RJ-45 (M) to RJ-45 (M) - 2 m - SFTP - CAT 8 - snagless - black
Tootekood
IKABH
Patch kaablid – – IKABH Vention - Patch cable - RJ-45 (M) to RJ-45 (M) - 2 m - SFTP - CAT 8 - snagless - black
Tootekood
IKABH
Ladu Kogus Tarne Hind
LV025   100 E 20.04 8,04
Patch kaablid – – IKABI
Vention - Patch cable - RJ-45 (M) to RJ-45 (M) - 3 m - SFTP - CAT 8 - snagless - black
Tootekood
IKABI
Patch kaablid – – IKABI Vention - Patch cable - RJ-45 (M) to RJ-45 (M) - 3 m - SFTP - CAT 8 - snagless - black
Tootekood
IKABI
Ladu Kogus Tarne Hind
LV025   100 E 20.04 9,39
Patch kaablid – – IKABJ
Vention - Patch cable - RJ-45 (M) to RJ-45 (M) - 2 m - SFTP - CAT 8 - snagless - black
Tootekood
IKABJ
Patch kaablid – – IKABJ Vention - Patch cable - RJ-45 (M) to RJ-45 (M) - 2 m - SFTP - CAT 8 - snagless - black
Tootekood
IKABJ
Ladu Kogus Tarne Hind
LV025   100 E 20.04 11,79
Patch kaablid – – CP1KSBSBS0020
EasyLan FlexBoot - Patch cable - RJ-45 (M) to RJ-45 (M) - 2 m - S / FTP - CAT 6a - IEEE 802.3ab / IEEE 802.3af / IEEE 802.3at / IEEE 802.3bt - halogen-free, snagless - black
Tootekood
CP1KSBSBS0020
Patch kaablid – – CP1KSBSBS0020 EasyLan FlexBoot - Patch cable - RJ-45 (M) to RJ-45 (M) - 2 m - S / FTP - CAT 6a - IEEE 802.3ab / IEEE 802.3af / IEEE 802.3at / IEEE 802.3bt - halogen-free, snagless - black
Tootekood
CP1KSBSBS0020
Ladu Kogus Tarne Hind
LV059   15 E 04.05 18,66
Patch kaablid – – CP1OAMSMS0010
EasyLan VarioBoot - Patch cable - RJ-45 (M) to RJ-45 (M) - 1 m - S / FTP, PiMF - CAT 6a - IEEE 802.3an - halogen-free, snagless, adjustable angle - grey
Tootekood
CP1OAMSMS0010
Patch kaablid – – CP1OAMSMS0010 EasyLan VarioBoot - Patch cable - RJ-45 (M) to RJ-45 (M) - 1 m - S / FTP, PiMF - CAT 6a - IEEE 802.3an - halogen-free, snagless, adjustable angle - grey
Tootekood
CP1OAMSMS0010
Ladu Kogus Tarne Hind
LV059   3 E 04.05 20,86
Patch kaablid – – CP1OBMSMS0010
EasyLan VarioBoot - Patch cable - RJ-45 (M) to RJ-45 (M) - 1 m - S / FTP, PiMF - CAT 6a - IEEE 802.3an - halogen-free, snagless, adjustable angle - blue
Tootekood
CP1OBMSMS0010
Patch kaablid – – CP1OBMSMS0010 EasyLan VarioBoot - Patch cable - RJ-45 (M) to RJ-45 (M) - 1 m - S / FTP, PiMF - CAT 6a - IEEE 802.3an - halogen-free, snagless, adjustable angle - blue
Tootekood
CP1OBMSMS0010
Ladu Kogus Tarne Hind
LV059   2 E 04.05 20,86
Patch kaablid – – CPP1OBABAB0075
EasyLan DualBoot PushPull - Patch cable - RJ-45 (M) to RJ-45 (M) - 7.5 m - S / FTP - CAT 6a - IEEE 802.3bt / IEEE 802.3af / IEEE 802.3an / IEEE 802.3at - halogen-free, snagless - blue
Tootekood
CPP1OBABAB0075
Patch kaablid – – CPP1OBABAB0075 EasyLan DualBoot PushPull - Patch cable - RJ-45 (M) to RJ-45 (M) - 7.5 m - S / FTP - CAT 6a - IEEE 802.3bt / IEEE 802.3af / IEEE 802.3an / IEEE 802.3at - halogen-free, snagless - blue
Tootekood
CPP1OBABAB0075
Ladu Kogus Tarne Hind
LV059   2 E 04.05 30,50
Patch kaablid – – 21.05.0035
Dätwyler - Patch cable - RJ-45 (M) to RJ-45 (M) - 3 m - screened shielded twisted pair (SSTP) - CAT 6 - halogen-free - black
Tootekood
21.05.0035
Patch kaablid – – 21.05.0035 Dätwyler - Patch cable - RJ-45 (M) to RJ-45 (M) - 3 m - screened shielded twisted pair (SSTP) - CAT 6 - halogen-free - black
Tootekood
21.05.0035
Ladu Kogus Tarne Hind
LV059   21 E 04.05 26,31
Patch kaablid – – CP1KRBRBR0030
EasyLan FlexBoot - Patch cable - RJ-45 (M) to RJ-45 (M) - 3 m - S / FTP - CAT 6a - IEEE 802.3ab / IEEE 802.3af / IEEE 802.3at / IEEE 802.3bt - halogen-free, snagless - red
Tootekood
CP1KRBRBR0030
Patch kaablid – – CP1KRBRBR0030 EasyLan FlexBoot - Patch cable - RJ-45 (M) to RJ-45 (M) - 3 m - S / FTP - CAT 6a - IEEE 802.3ab / IEEE 802.3af / IEEE 802.3at / IEEE 802.3bt - halogen-free, snagless - red
Tootekood
CP1KRBRBR0030
Ladu Kogus Tarne Hind
LV059   2 E 04.05 20,13
Patch kaablid – – CP1KRBRBR0050
EasyLan FlexBoot - Patch cable - RJ-45 (M) to RJ-45 (M) - 5 m - S / FTP - CAT 6a - IEEE 802.3ab / IEEE 802.3af / IEEE 802.3at / IEEE 802.3bt - halogen-free, snagless - red
Tootekood
CP1KRBRBR0050
Patch kaablid – – CP1KRBRBR0050 EasyLan FlexBoot - Patch cable - RJ-45 (M) to RJ-45 (M) - 5 m - S / FTP - CAT 6a - IEEE 802.3ab / IEEE 802.3af / IEEE 802.3at / IEEE 802.3bt - halogen-free, snagless - red
Tootekood
CP1KRBRBR0050
Ladu Kogus Tarne Hind
LV059   7 E 04.05 22,98
Patch kaablid – – CP1KYBYBY0020
EasyLan FlexBoot - Patch cable - RJ-45 (M) to RJ-45 (M) - 2 m - S / FTP - CAT 6a - IEEE 802.3ab / IEEE 802.3af / IEEE 802.3at / IEEE 802.3bt - halogen-free, snagless - yellow
Tootekood
CP1KYBYBY0020
Patch kaablid – – CP1KYBYBY0020 EasyLan FlexBoot - Patch cable - RJ-45 (M) to RJ-45 (M) - 2 m - S / FTP - CAT 6a - IEEE 802.3ab / IEEE 802.3af / IEEE 802.3at / IEEE 802.3bt - halogen-free, snagless - yellow
Tootekood
CP1KYBYBY0020
Ladu Kogus Tarne Hind
LV059   5 E 04.05 18,66
Patch kaablid – – 21.15.0335
Roline - Patch cable - RJ-45 (M) to RJ-45 (M) - 1 m - SF / UTP - CAT 5e - molded - black
Tootekood
21.15.0335
Patch kaablid – – 21.15.0335 Roline - Patch cable - RJ-45 (M) to RJ-45 (M) - 1 m - SF / UTP - CAT 5e - molded - black
Tootekood
21.15.0335
Ladu Kogus Tarne Hind
LV059   317 E 04.05 14,66
Patch kaablid – – LSD32200075
EasyLan - Patch cable - LC multi-mode (M) to LC multi-mode (M) - 7.5 m - 7.5 m - fibre optic - duplex - 50 / 125 micron - OM3 - aqua, RAL 6027
Tootekood
LSD32200075
Patch kaablid – – LSD32200075 EasyLan - Patch cable - LC multi-mode (M) to LC multi-mode (M) - 7.5 m - 7.5 m - fibre optic - duplex - 50 / 125 micron - OM3 - aqua, RAL 6027
Tootekood
LSD32200075
Ladu Kogus Tarne Hind
LV059   1 E 04.05 51,88
Patch kaablid – – 21.05.0551
Dätwyler - Patch cable - RJ-45 (M) to RJ-45 (M) - 5 m - SFTP, PiMF - CAT 6a - booted, halogen-free, snagless, stranded - red
Tootekood
21.05.0551
Patch kaablid – – 21.05.0551 Dätwyler - Patch cable - RJ-45 (M) to RJ-45 (M) - 5 m - SFTP, PiMF - CAT 6a - booted, halogen-free, snagless, stranded - red
Tootekood
21.05.0551
Ladu Kogus Tarne Hind
LV059   2 E 04.05 32,55
Patch kaablid – – 21.15.8845
Roline - Patch cable - LC / UPC single-mode (M) to LC / UPC single-mode (M) - 5 m - fibre optic - simplex - 9 / 125 micron - OS2 - booted, halogen-free - yellow
Tootekood
21.15.8845
Patch kaablid – – 21.15.8845 Roline - Patch cable - LC / UPC single-mode (M) to LC / UPC single-mode (M) - 5 m - fibre optic - simplex - 9 / 125 micron - OS2 - booted, halogen-free - yellow
Tootekood
21.15.8845
Ladu Kogus Tarne Hind
LV059   4 T 21.04 15,33
Patch kaablid – – K5525FGE.30
EFB-Elektronik - Patch cable - RJ-45 (M) to RJ-45 (M) - 30 m - SFTP - CAT 7 (cable) / CAT 6a (connectors) - halogen-free, molded - yellow
Tootekood
K5525FGE.30
Patch kaablid – – K5525FGE.30 EFB-Elektronik - Patch cable - RJ-45 (M) to RJ-45 (M) - 30 m - SFTP - CAT 7 (cable) / CAT 6a (connectors) - halogen-free, molded - yellow
Tootekood
K5525FGE.30
Ladu Kogus Tarne Hind
JCBBT2   47 N 30.04 79,32
Patch kaablid – – KKU5CZA0.5
ALANTEC - Patch cable - RJ-45 (M) to RJ-45 (M) - 50 cm - UTP - CAT 5e - stranded - black
Tootekood
KKU5CZA0.5
Patch kaablid – – KKU5CZA0.5 ALANTEC - Patch cable - RJ-45 (M) to RJ-45 (M) - 50 cm - UTP - CAT 5e - stranded - black
Tootekood
KKU5CZA0.5
Ladu Kogus Tarne Hind
PL071   200 N 07.05 14,04
Patch kaablid – – KKU5CZA1
ALANTEC - Patch cable - RJ-45 (M) to RJ-45 (M) - 1 m - UTP - CAT 5e - stranded - black
Tootekood
KKU5CZA1
Patch kaablid – – KKU5CZA1 ALANTEC - Patch cable - RJ-45 (M) to RJ-45 (M) - 1 m - UTP - CAT 5e - stranded - black
Tootekood
KKU5CZA1
Ladu Kogus Tarne Hind
PL071   200 N 07.05 14,14
Patch kaablid – – KKU5ZIE1
ALANTEC - Patch cable - RJ-45 (M) to RJ-45 (M) - 1 m - UTP - CAT 5e - stranded - green
Tootekood
KKU5ZIE1
Patch kaablid – – KKU5ZIE1 ALANTEC - Patch cable - RJ-45 (M) to RJ-45 (M) - 1 m - UTP - CAT 5e - stranded - green
Tootekood
KKU5ZIE1
Ladu Kogus Tarne Hind
PL071   73 N 07.05 14,14
Patch kaablid – – KKU5CZA2
ALANTEC - Patch cable - RJ-45 (M) to RJ-45 (M) - 2 m - UTP - CAT 5e - stranded - black
Tootekood
KKU5CZA2
Patch kaablid – – KKU5CZA2 ALANTEC - Patch cable - RJ-45 (M) to RJ-45 (M) - 2 m - UTP - CAT 5e - stranded - black
Tootekood
KKU5CZA2
Ladu Kogus Tarne Hind
PL071   200 N 07.05 14,35
Patch kaablid – – KKU5SZA2
ALANTEC - Patch cable - RJ-45 (M) to RJ-45 (M) - 2 m - UTP - CAT 5e - stranded - grey
Tootekood
KKU5SZA2
Patch kaablid – – KKU5SZA2 ALANTEC - Patch cable - RJ-45 (M) to RJ-45 (M) - 2 m - UTP - CAT 5e - stranded - grey
Tootekood
KKU5SZA2
Ladu Kogus Tarne Hind
PL071   155 N 07.05 14,35
Patch kaablid – – KKU5CZA5
ALANTEC - Patch cable - RJ-45 (M) to RJ-45 (M) - 5 m - UTP - CAT 5e - stranded - black
Tootekood
KKU5CZA5
Patch kaablid – – KKU5CZA5 ALANTEC - Patch cable - RJ-45 (M) to RJ-45 (M) - 5 m - UTP - CAT 5e - stranded - black
Tootekood
KKU5CZA5
Ladu Kogus Tarne Hind
PL071   159 N 07.05 15,00
Patch kaablid – – KKU5SZA5
ALANTEC - Patch cable - RJ-45 (M) to RJ-45 (M) - 5 m - UTP - CAT 5e - stranded - grey
Tootekood
KKU5SZA5
Patch kaablid – – KKU5SZA5 ALANTEC - Patch cable - RJ-45 (M) to RJ-45 (M) - 5 m - UTP - CAT 5e - stranded - grey
Tootekood
KKU5SZA5
Ladu Kogus Tarne Hind
PL071   200 N 07.05 15,00
Patch kaablid – – KKS6SZA3.0
ALANTEC - Patch cable - RJ-45 (M) to RJ-45 (M) - 3 m - STP - CAT 6 - grey
Tootekood
KKS6SZA3.0
Patch kaablid – – KKS6SZA3.0 ALANTEC - Patch cable - RJ-45 (M) to RJ-45 (M) - 3 m - STP - CAT 6 - grey
Tootekood
KKS6SZA3.0
Ladu Kogus Tarne Hind
PL071   61 N 07.05 15,83
Patch kaablid – – KKU5CZE1
ALANTEC - Patch cable - RJ-45 (M) to RJ-45 (M) - 1 m - UTP - CAT 5e - stranded - red
Tootekood
KKU5CZE1
Patch kaablid – – KKU5CZE1 ALANTEC - Patch cable - RJ-45 (M) to RJ-45 (M) - 1 m - UTP - CAT 5e - stranded - red
Tootekood
KKU5CZE1
Ladu Kogus Tarne Hind
PL071   156 N 07.05 14,14
Patch kaablid – – KKU5SZA3
ALANTEC - Patch cable - RJ-45 (M) to RJ-45 (M) - 3 m - UTP - CAT 5e - stranded - grey
Tootekood
KKU5SZA3
Patch kaablid – – KKU5SZA3 ALANTEC - Patch cable - RJ-45 (M) to RJ-45 (M) - 3 m - UTP - CAT 5e - stranded - grey
Tootekood
KKU5SZA3
Ladu Kogus Tarne Hind
PL071   58 N 07.05 14,57
Patch kaablid – – KKU5SZA20
ALANTEC - Patch cable - RJ-45 (M) to RJ-45 (M) - 2 m - UTP - CAT 5e - molded, stranded - grey
Tootekood
KKU5SZA20
Patch kaablid – – KKU5SZA20 ALANTEC - Patch cable - RJ-45 (M) to RJ-45 (M) - 2 m - UTP - CAT 5e - molded, stranded - grey
Tootekood
KKU5SZA20
Ladu Kogus Tarne Hind
PL071   19 N 07.05 18,00
Patch kaablid – – KKS6SZA2.0
ALANTEC - Patch cable - RJ-45 (M) to RJ-45 (M) - 2 m - STP - CAT 6 - grey
Tootekood
KKS6SZA2.0
Patch kaablid – – KKS6SZA2.0 ALANTEC - Patch cable - RJ-45 (M) to RJ-45 (M) - 2 m - STP - CAT 6 - grey
Tootekood
KKS6SZA2.0
Ladu Kogus Tarne Hind
PL071   110 N 07.05 15,51
Patch kaablid – – KKU5SZA0.5
ALANTEC - Patch cable - RJ-45 (M) to RJ-45 (M) - 50 cm - UTP - CAT 5e - stranded - grey
Tootekood
KKU5SZA0.5
Patch kaablid – – KKU5SZA0.5 ALANTEC - Patch cable - RJ-45 (M) to RJ-45 (M) - 50 cm - UTP - CAT 5e - stranded - grey
Tootekood
KKU5SZA0.5
Ladu Kogus Tarne Hind
PL071   73 N 07.05 14,04
Patch kaablid – – KKS6SZA0.5
ALANTEC - Patch cable - RJ-45 (M) to RJ-45 (M) - 50 cm - foiled unshielded twisted pair (F / UTP) - CAT 6 - stranded - light grey
Tootekood
KKS6SZA0.5
Patch kaablid – – KKS6SZA0.5 ALANTEC - Patch cable - RJ-45 (M) to RJ-45 (M) - 50 cm - foiled unshielded twisted pair (F / UTP) - CAT 6 - stranded - light grey
Tootekood
KKS6SZA0.5
Ladu Kogus Tarne Hind
PL071   18 N 07.05 14,67
Patch kaablid – – KKU5SZA1
ALANTEC - Patch cable - RJ-45 (M) to RJ-45 (M) - 1 m - UTP - CAT 5e - stranded - grey
Tootekood
KKU5SZA1
Patch kaablid – – KKU5SZA1 ALANTEC - Patch cable - RJ-45 (M) to RJ-45 (M) - 1 m - UTP - CAT 5e - stranded - grey
Tootekood
KKU5SZA1
Ladu Kogus Tarne Hind
PL071   200 N 07.05 14,14
Patch kaablid – – KKU5SZA10
ALANTEC - Patch cable - RJ-45 (M) to RJ-45 (M) - 10 m - UTP - CAT 5e - halogen-free, molded, stranded - grey
Tootekood
KKU5SZA10
Patch kaablid – – KKU5SZA10 ALANTEC - Patch cable - RJ-45 (M) to RJ-45 (M) - 10 m - UTP - CAT 5e - halogen-free, molded, stranded - grey
Tootekood
KKU5SZA10
Ladu Kogus Tarne Hind
PL071   65 N 07.05 16,11
Patch kaablid – – UC-PATCH-RJ45-BL-50
Ubiquiti UniFi - Patch cable - RJ-45 (M) to RJ-45 (M) - 10 cm - 3 mm - CAT 6 - booted - blue (pack of 50)
Tootekood
UC-PATCH-RJ45-BL-50
Patch kaablid – – UC-PATCH-RJ45-BL-50 Ubiquiti UniFi - Patch cable - RJ-45 (M) to RJ-45 (M) - 10 cm - 3 mm - CAT 6 - booted - blue (pack of 50)
Tootekood
UC-PATCH-RJ45-BL-50
Ladu Kogus Tarne Hind
PL071   7 N 07.05 135,01
Patch kaablid – – 605618
Equip - Patch cable - RJ-45 (M) to RJ-45 (M) - 15 m - FTP - CAT 6a - molded - white
Tootekood
605618
Patch kaablid – – 605618 Equip - Patch cable - RJ-45 (M) to RJ-45 (M) - 15 m - FTP - CAT 6a - molded - white
Tootekood
605618
Ladu Kogus Tarne Hind
PL071   39 N 07.05 65,22
Patch kaablid – – 605658
Equip - Patch cable - RJ-45 (M) to RJ-45 (M) - 15 m - SFTP - CAT 6a - IEEE 802.5 - molded, stranded - purple
Tootekood
605658
Patch kaablid – – 605658 Equip - Patch cable - RJ-45 (M) to RJ-45 (M) - 15 m - SFTP - CAT 6a - IEEE 802.5 - molded, stranded - purple
Tootekood
605658
Ladu Kogus Tarne Hind
PL071   79 N 07.05 65,48
Patch kaablid – – 605619
Equip - Patch cable - RJ-45 (M) to RJ-45 (M) - 20 m - FTP - CAT 6a - molded - white
Tootekood
605619
Patch kaablid – – 605619 Equip - Patch cable - RJ-45 (M) to RJ-45 (M) - 20 m - FTP - CAT 6a - molded - white
Tootekood
605619
Ladu Kogus Tarne Hind
PL071   156 N 07.05 81,88
Patch kaablid – – 605639
Equip - Patch cable - RJ-45 (M) to RJ-45 (M) - 20 m - FTP - CAT 6a - molded - blue
Tootekood
605639
Patch kaablid – – 605639 Equip - Patch cable - RJ-45 (M) to RJ-45 (M) - 20 m - FTP - CAT 6a - molded - blue
Tootekood
605639
Ladu Kogus Tarne Hind
PL071   82 N 07.05 81,88
Patch kaablid – – 605678
Equip - Patch cable - RJ-45 (M) to RJ-45 (M) - 15 m - SFTP - CAT 6a - IEEE 802.5 - molded, stranded - orange
Tootekood
605678
Patch kaablid – – 605678 Equip - Patch cable - RJ-45 (M) to RJ-45 (M) - 15 m - SFTP - CAT 6a - IEEE 802.5 - molded, stranded - orange
Tootekood
605678
Ladu Kogus Tarne Hind
PL071   71 N 07.05 65,48
Et pakkuda parimat kasutajakogemust, vajame nõusolekut veebilehel küpsiste kasutamiseks. Tutvu küpsiste kasutamise põhimõtetega.
Nõustun