Installing the Avaya S8700 Media Server with an Avaya G650 Media Gateway
135
December 2003
Space requirements and layout
Before installing the main distribution frame (MDF) and other equipment in the equipment room, make
sure there is adequate space and there is a plan for placing the equipment.
Installation space requirements
Make sure there is adequate space for the following pieces of equipment:
•
Sneak fuse panels and emergency transfer units
on page 135
•
110-type hardware
on page 135
•
Cable Slack Manager
on page 135
Sneak fuse panels and emergency transfer units
You need about 8 inches (20 centimeters) of horizontal wall space for each column of sneak fuse panels.
Horizontal wall space must also be provided for emergency transfer units.
110-type hardware
The trunk/auxiliary field and the distribution field are mounted on the same wall. Each 110P-type
terminal block is 8.5 inches (21.6 centimeters) wide. Vertical patch cord troughs are 5.31 inches (13.4
centimeters) wide and horizontal patch cord troughs are 23 inches (58.4 centimeters) wide.
Each 110A-type terminal block is 10.8 inches (27.4 centimeters) wide; however, no horizontal patch cord
troughs are used and the blocks are shorter than 110P-type terminal blocks. This allows the 110A-type
terminal blocks to be stacked. Therefore, the 110A-type hardware requires less space than the 110P-type
hardware on a per-station basis.
Cable Slack Manager
A Cable Slack Manager is 32 inches (81.3 centimeters) wide. Slack managers are commonly used in
installations consisting of media gateway stacks, such as the SCC1 Media Gateways. Determine the
quantity of slack managers by dividing the total length of the MDF in inches (centimeters) by 32 (81.3).
A partial number of 0.4 or less should be rounded down, and a partial number of 0.5 or more should be
rounded up (for example: 2.4 = two Cable Slack Managers and 2.5 = three Cable Slack Managers).
NOTE:
Cable clamps are required in installations with Cable Slack Managers. At the rear of the
media gateways, on each rear ground plate, install two cable clamps using the screws
provided. These clamps hold the 25-pair input/output or MDF cables in place.
Layout
Make sure you review the following information:
•
Information outlet locations
on page 136
•
Site, satellite, and adapter locations
on page 136
•
Sizing 4-pair station cables
on page 136
•
Sizing 25-pair and multiple 25-pair station cables
on page 136
•
3-pair station cable circuits
on page 136
•
4-pair station cable circuits
on page 137
