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DECrepeater 900TL
INSTALLATION
LKG–8176-93I
DECrepeater 900TL
DEChub ONE Repeater 900TL
PK–02580–IL
The DECrepeater 900TL is a Token Ring repeater that operates at a speed of 4 or
16 Mb/s. It extends trunk and lobe distances for unshielded and shielded 100-ohm
cable. As a member of Digital's Token Ring product family, it operates in a DEChub
900 MultiSwitch, or as a standalone unit (DEChub ONE Repeater 900TL). The
DECrepeater 900TL can also be managed by optional HUBwatch management
software.
EK–DTROR–IN. A01
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Summary of Contents for Digital Equipment DECrepeater 900TL
- Page 1 DEChub ONE Repeater 900TL PK–02580–IL The DECrepeater 900TL is a Token Ring repeater that operates at a speed of 4 or 16 Mb/s. It extends trunk and lobe distances for unshielded and shielded 100-ohm cable. As a member of Digital’s Token Ring product family, it operates in a DEChub 900 MultiSwitch, or as a standalone unit (DEChub ONE Repeater 900TL).
- Page 2 August 1993 The information in this document is subject to change without notice and should not be construed as a commitment by Digital Equipment Corporation. Digital Equipment Corpo- ration assumes no responsibility for any errors that may appear in this document.
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Page 3: Front Panel
Multistation Access Unit (MAU). 11) Reset Switch. Resets all settings, except for the LKG-8155-93I Speed switch setting, to their factory defaults. To reset: while turning on the power, press the reset switch with a pen or screwdriver. DECrepeater 900TL... - Page 4 Rear Panel of DEChub ONE Repeater 900TL Note: The rear panel shown here is used only when the repeater is in a standalone configuration. 12) Power Connector. Provides power connection for the repeater. (DEChub ONE only) PK–02586–IL PK–02586–IL LKG-8255-93I DECrepeater 900TL...
- Page 5 With the latch up, pull the top of the rear cover away, pivoting around the bottom of the repeater. LKG-8150-93I Set Speed switch. Set the Speed switch to 16 when the network speed is 16 Mb/s or 4 when the speed is 4 Mb/s. LKG–8151-93I DECrepeater 900TL...
- Page 6 Set the Ring In and the Ring Out Autowrap switches to 1 to enable Autowrap. b. Connect the station to the Ring Out port. c. Once the ring becomes active, verify that the Ring Out LED is on. DECrepeater 900TL...
- Page 7 Connect power supply. a. Connect the power supply cable to the power connector. b. Plug the power supply into a wall PK–02584–IL outlet. c. With power on, verify that the Power and Module OK LEDs are on. LKG–8153-93I Power Supply DECrepeater 900TL...
- Page 8 Autowrap. b. Connect the station to the Ring Out port. LKG-8154-93I c. Connect the Ring In port to a station port on a MAU. d. Once the station becomes active, verify that the Ring Out LED is on. DECrepeater 900TL...
- Page 9 When you remove a repeater from the b. Pivot the repeater back on its DEChub 900 MultiSwitch, do not turn off the bottom mounting tab until it hub power. disengages from the hub. Lift the release lever. Mounting LKG–8144-93I DECrepeater 900TL...
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Page 10: Led Summary
The repeater’s speed detection feature protects the network from devices that are set at the wrong net- work speed. When using some non–Digital equipment, isolating faults and reconfiguring the network may take up to 20 seconds. DECrepeater 900TL... - Page 11 65 m (213 ft) 100 m (327 ft) All distances include patch cables and hub connections. DEChub 900 MultiSwitch Configuration Multiple Hubs A repeater is needed in each DEChub 900 MultiSwitch to connect hubs in a multiple hub network. DECrepeater 900TL...
- Page 12 When distances exceed the lobe lengths in Table 2, or if the MAU does not have Digital’s Autowrap functionality, two repeaters are required. When a MAU has Autowrap enabled, only one repeater is required per wiring closet if the distance between the wiring closets does not exceed the distances shown in Table 2. DECrepeater 900TL...
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Page 13: Problem Solving
RI or RO port. or the repeater’s Reset switch. Ring In or Ring Out LED has Repeater and ring have Change the speed setting of the double flash pattern. different speed settings. repeater, stations or the ring. DECrepeater 900TL... - Page 14 DECmau or DECrepeater adjacent to the vendor’s unit. Network crashes when a Vendor’s unit does not have Set Autowrap switches to 1 on the MAU or repeater fails. Digital’s Autowrap. DECmau or DECrepeater adjacent to the failed unit. DECrepeater 900TL...
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Page 15: Product Specifications
9296 and ISO 7779 Schallemissionswerte: keine meßbaren Schallemissionen keine meßbaren Schallemissionen Vorläuge Werteangaben nach ISO 9296 und ISO 7779/DIN EN27779 Associated Documents DEChub 900 MultiSwitch This manual provides overview, installation, and problem Owner’s Manual solving information for the DEChub 900 MultiSwitch. DECrepeater 900TL...
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