ATT DEFINITY Communications System Generic 3 For Single-Carrier Cabinets Instructions Manual

							Install and Connect the Cabinets
4-34Issue 1  September 1995 
Install Cable Clamps
At the back of the cabinets, on each ground plate, install two cable clamp s 
using the screws provided (see Figure 4-23). These clamp s hold the 25-pair 
input/output or cross-connect field cables in place.
Figure 4-23. Location of Cable Clamps
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Figure Notes:
1. Cable Clamp
2. Cable Slack Manager
3. Switch Cabinet4. Cabinet Trough for Port  Cables
5. Spare Center Troughs 
						

							Install Front Plates
Issue 1  September 1995 
4-35
Install Front Plates
The front plates provide electromagnetic radiation and radio frequency (RF) 
shielding and earthquake protection. 
If you do not have a requirement for electromagnetic radiation shielding, radio 
frequency shielding, or earthquake protection, use the cabinet clips as 
described in this section.
Install Front Plates on Systems with
Earthquake Protection
Refer to Ap pendix B to install the front plates to help provide earthquake 
protection and radiation shielding.
Front plates are used in place of cabinet clips (as described in Appendix B), for 
earthquake protection.
Install Cabinet Clip On Systems without
Earthquake Protection
A cabinet clip is required between each cabinet to stabilize the c a binets. 
Figure 4-24. Cabinet Clip
At the front of the c a binets, install a cabinet clip (Figure 4-24) between each 
cabinet by hooking the clip into the slot of the upper cabinet and sna p ping the 
straight leg of the clip into the slot on the lower c a binet (see Figure 4-25).
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							Install and Connect the Cabinets
4-36Issue 1  September 1995 
Figure 4-25. Location of Cabinet Clips
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1. Port Cabinet D
2. Port Cabinet C
3. Cabinet clips4. Port Cabinet B
5. Basic Control Cabinet A
Figure Notes: 
						

							Issue 1  September 19955-1 
5
Install Telecommunications Cabling
This chapter describes how to install telecommunications cables and cross-
connect equipment. 
The specific equipment being installed varies on what was ordered for your site. 
Use the material presented in this chapter as an example.
Install the Cross-Connect Field
This section describes how to connect to the cross-connect field. 
Typical Cross-Connect Field Using
110-Type Hardware
The cross-c onnect field is normally located directly behind the switch cabinet. 
Figure 5-1 shows a typical cross-connect field installation using 110A-type 
terminal blocks. Allow at least 3 feet (1 meter) between the back of cabinet and 
the 110-type hardware. 
						

							Install Telecommunications Cabling
5-2Issue 1  September 1995 
Figure 5-1. Typical Cross-Connect Field Installation: 
110A-Type Terminal Blocks 
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1. D Ri n g
2. Trunk auxiliary field
3. Port distribution field
4. Station distribution field5 . Sta ti on  c a b l es
6 . Swi tch  c a b ine t
7. Z113A cable slack manager
8. 25-pair cable to switch cabinet
Figure Notes: 
						

							Issue 1  September 19955-3
In Figure 5-1, a pproximately 576 4-Pair or 768 3-Pair Station Capacity is 
illustrated. 
Hardware Installation
These hardware installation instructions are written so one system technician 
can install the following equipment:
nCross-c onnec t field
nCable slac k managers
nSneak c urrent p rotec tor (507B) 
The preferred cross-connect field location is directly b ehind the switch cabinet. 
Install Cable Slack Managers
To install the cable slack managers (Figure 5-2), proceed as follows: 
1. Place the Z113A cable slack manager against the wall under the cross-
connect field, aligning the left side of the cable slack manager with the 
first terminal block of the trunk/auxiliary field.
2. Place the next cable slack manager beside the previous cable slack 
manager. Align the tabs and interlocks and snap the cable slack 
managers together.
3. Repeat Step 2 until all c a ble slack managers are installed.
NOTE:
Nine holes (1/4-inch or 0.6 cm) are provided in a cable slack manager 
base for earthquake mounting. Also, if a cable slack manager base is 
mounted on an uneven floor, shims may be required to level it and insure 
proper fit of the covers. Holes are p rovided in the sides of the base for 
bolting cable slack managers together. Bolts and shims are not provided.
Route Cables from Cabinet to Cross-
Connect Field
Use the following guidelines when routing cables from the cabinet to the cross-
connect field. 
nWhen c a ble routing is to the top/bottom of the cross-connect field, each 
port cable is connected at the cabinet and routed along the front trough 
of the cable slack manager to the c onnecting/terminal block. The cable is 
then terminated.
nEnough slack must be left at the cabinet end of the cable to allow for 
proper dressing of the cables (Figure 5-3). 
						

							Install Telecommunications Cabling
5-4Issue 1  September 1995 
nRoute the cable from the cabinet to the wall. Place the c a ble beside one 
of the rows of columns in the cable slack manager (see following note).
NOTE:
Retainers mounted on the columns keep the cable from protruding 
above the top of the base of the cable slack manager.
nDetermine the length of the cable required to reach from the cable slack 
manager to the assigned connecting/terminal block.
nThe c a ble must be supp orte d on the wall.
nCable slack is stored by coiling the cable around the columns in the 
cable slack manager. The first run should always g o across the full length 
of the five columns in the cable slack manager.
nConnect the cable to the assigned connecting/terminal block. 
						

							Issue 1  September 19955-5
Figure 5-2. Cable Routing Through Cable Slack Manager for 
Single Cabinet Installation 
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1. Cable Clamp
2. Trunk Auxiliary Field3 . Swi tch  Ca b i ne t
4. Cabinet Trough for Port Cables
5. Spare Center Troughs
Figure Notes: 
						

							Install Telecommunications Cabling
5-6Issue 1  September 1995 
Figure 5-3. Typical Port Cable Installation at Switch Cabinet
Connect Control Carrier Outputs 
Cable
Plug the connector c able in the AUX connector on the rear of the control carrier. 
Route the connector cable through the c a ble slack manager to the assigned 
connecting block in the yellow field of the trunk/auxiliary field.
Refer to Table 9-9 for pinout information.
The output wiring connections for the Initialization Ad ministration System 
(INADS) trunk interface are described in Install Initialization and Ad ministration 
System (INADS) Interface on pa ge 9-21
.
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1. B25A cables
2. Loop and Drape Excess Fibre-Optic 
Cable. Do Not Route Fibre-Optic Cable 
and B25A Cables Together.3. Fibre-Optic Cable Sheath
4. Port Cabinet
5. Control cabinet
Figure Notes: 
						

							Issue 1  September 19955-7
Label Cables
Label the cables as d esc rib e d in this section. 
The port label shown in the next figure is installed on both ends of the
25-pair cables  connecting to the trunk/auxiliary field and/or the distribution field. 
See Table 5-1 for the c a ble label and colour code. The building and floor labels 
connect from the equipment room to a site/satellite location on another floor or in 
another building. The auxiliary circuits connect to the trunk/auxiliary field.
Figure 5-4. Equipment Room Cabling Labels 
Install Trunk Cables Among Network 
Interface, Sneak Current Protector, 
and 
Switch Cabinet
The 1-pair external trunks are installed by the local telephone company in the 
trunk auxiliary field. Tie trunks also a ppear in the trunk auxiliary field. Refer to 
callout 2 on Figure 5-1 on p a ge 5-2. 
Table 5-1. Cable Labels
 Number Label Name Range Colour
1 Port Label 1A1-1A10, 1B1-1B20, 1C1-1C20, 
1D1-1D20, 1E1-1E20Pu rp l e
2 Building Field Identified Blue/Yellow
3 Floor Field Identified Blue/Yellow
4 Auxiliary Cable Field Identified Yellow
5 Site or Satellite A-F and/or Field Id entified Blue/Yellow
1AA 2
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