3 – Installation & Wiring ACS-160 Series & STL-160 Series T1 Multiplexer Installation & Operation
Version 2.11, August 2011
Harris Corporation 3-21
Intraplex Products
3.7.1 Shelf Power for Additional Channel Modules
Always verify that your multiplexer shelf has available power before adding channel modules to the
unit. Section 3.6.6 gives information on nominal power requirements for Intraplex common modules
and for those module adapters that have active components. Check the individual channel module
manuals for channel modules’ power requirements.
Warning! Do not exceed the capacity of the installed power supply module. If needed, Intraplex
offers power supplies with greater capacity. If additional channel modules would overload
your power supply module or if you have questions about determining the power supply
capacity needed, contact Harris Customer Service.
3.7.2 Channel Module Direction and Transmit/Receive Time Slot Setting
Set the channel module transmit/receive direction using the guidelines in Section 4.2.3 – Channel
Module Communication Direction. Use these guidelines to set the transmit and receive time slots for
each channel module:
● In each direction of transmission, always set up the two channel modules at either end of a new
channel to use the same time slot or slots. That is, on a channel between Locations 1 and 2, the
transmit time slot at Location 1 must be the same as the receive time slot at Location 2, and the
transmit time slot at Location 2 must be the same as the receive time slot at Location 1.
● When adding a pair of one-way modules to transmit from Point A to Point B and a similar pair to
transmit from Point B to Point A, use the same time slot in both directions of transmission, if
possible. This is not a requirement, but should reduce the chance of making record-keeping
errors.
● Always select time slots that are not occupied by other channels in any T1 facility traversed by the
new channel. In drop and insert systems with four or more locations, be careful not to ignore time
slots occupied by channels between intermediate drop and insert multiplexers.
3.7.3 Channel Module Installation Procedure
1. At Location 1, install and wire the module adapter that is provided with the channel module
(Figure 3-20).
Figure 3-20. 3RU Side View (or 1RU Top View) with Module and Adapter Insertions
2. Install the channel module at Location 1.
Warning! If the ALARM or ALERT indicator light on the power supply turns on, remove the channel
module immediately.
To Next Page
Loading...