Cabletron Systems STH-24 User's Guide download pdf (Page 27)

Installing the STHI

Page 3-2

3.1.2 Stacking the STHI

The rear panel of the STHI has four STACK ports exclusively reserved for

connections to STH modules. Refer to the STH manual for stacking

instructions.

3.1.3 Attaching the Strain Relief Bracket

To reduce lateral stresses imposed on TCU ports and cable plugs by the

weight of cables hanging from the TCU ports of a horizontally mounted

STHI, the strain relief bracket ensures that cable forces pull nearly straight

out from the port, rather than prying sharply downward.

Attach the strain relief bracket to the front of the STHI as follows:

1. Locate the strain relief bracket and four 8-32 x 3/8” screws.

Use of longer screws may cause damage to the unit or

electrical shock to the user.

2. Carefully turn the STHI upside down.

3. Attach the strain relief bracket to the bottom of the STHI as shown in

Figure 3-1.

Figure 3-1. Attaching the Strain Relief Bracket

3.1.4 Rack-Mounting the STHI

Perform these steps to install the STHI in a 19-inch rack:

1. Remove the four cover screws (two from each side) located near the

front-most edges of each side of the STHI.

2. Using the four screws removed in step 1, attach the rack-mounting

brackets to each side of the STHI as shown in Figure 3-2.

WARNING

LANVIEW

SUPPORTING 100 OHM UTP CABLE

HubSTACK

STHI-24

TOKEN RING HUB

WITH

24X 23X 22X 21X 20X 19X

18X 17X 16X 15X 14X 13X

12X 11X 10X 9X 8X 7X

6X 5X 4X 3X 2X 1X

RESET

CPU

ACT

MGMT

16 Mb/s

SPEED

16M4M

COM

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Cabletron Systems STH-24 User's Guide Page 27

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