Harris ACS-163, Installation & Operation Manual

Page: 28 / 178

ACS-160 Series & STL-160 Series T1 Multiplexer Installation & Operation 2 – Functional Description
Version 2.11, August 2011
2-6 Harris Corporation
Intraplex Products
The lithium battery on the microprocessor chip has a data retention time of at least 10 years and an
expected shelf life of at least 20 years. In this context, “data retention time” is the time when power is
removed (the battery is active), and “shelf life” is the time when the shelf is powered (the battery is
inactive).
Intraplex maintenance offers equipment repair by replacing inoperative plug-in modules. A failed
lithium battery causes the common module on which the battery is mounted to fail. (Although, as
previously stated, this failure does not actually occur until operating power is removed and restored.)
To restore the multiplexer to service, perform these steps:
1. Replace the failed module with a spare common module.
2. Return the failed unit to the factory for microprocessor replacement.
Warning! Intraplex common modules may contain replaceable batteries. There is a danger of
explosion if a replaceable battery is incorrectly replaced. Only replace this battery with the
same or equivalent type recommended by the manufacturer. Dispose of used batteries
according to the manufacturer’s instructions.
2.1.3.7 CM-5RB User Interface
To enable user settings and display status information, the front edge of the CM-5RB module (Figure
2-6) has
● Two switches.
● A four-character alphanumeric display.
● Several indicator lights.
Figure 2-6. CM-5RB Common Module, Front View
Use GROUP and SET/NEXT Switches and Alphanumeric Display
The user-accessible CM-5RB module functions are organized into groups, which include
● Setup options such as SF and ESF (frame formats).
● Current status conditions such as receiving all ones.
● Informational items such as the CM-5RB firmware revision.
Detailed explanations of the basic CM-5RB functions appear in these sections:
● T1 operational functions (TIME and TSEL) in Section 4 – “Setup and Configuration”
● Remote access setup functions (ADDR and SIO) in Section 5 – “Remote Control Operation”
● Diagnostic functions (LPBK, BLNK, RVU1, and DIAG) in Section 6 – “Testing and
Troubleshooting”
Use the GROUP switch to select a particular function group and the SET/NEXT switch to view and
set functions within the currently selected group. The four-character alphanumeric display shows