3.4.1  
ALUM4 
 
NOTE  
Danger of damage to property due to surge voltage. The required lightning protection measures must be taken for this board, see Section 2.1.2 "Lightning Protection".  

Introduction  
In the event that HiPath 3550 or HiPath 3350 experience a voltage drop, voltage dip or unrecoverable system errors, a trunk failure transfer (ALUM) is activated (MSI only).
The module implements a power failure transfer for four analog telephones. The only kind of telephone that can be used is an analog telephone. The signaling method of the connected telephones should be the same as that on the trunk line, otherwise signaling will not be possible.
When the system is deactivated or if an error occurs, the trunk lines are connected directly to the telephones. When normal operation is resumed, the transfer represented in the figure below takes place.

ALUM4 module function  
 Figure 3-125   ALUM4 - Function
 

Interfaces  
 Figure 3-126   ALUM4 - Interfaces (S30817-Q935-A)
 
The cable that is plugged in by default is split and is connected to the TLA and to the 4/8/16SLA board.  

ALUM module contact assignments  

 Table 3-173   ALUM4 - Interface Assignments (not for U.S.)
 Contact  
 Connector X3  
 Connector X4  
 Connector X6  
 1  
 R1 from trunk 1a  
 AE1 to Stn. 1a  
 AT1 to TLA a  
 2  
 T1 from trunk 1b  
 BE1 to Stn. 1b  
 BT1 to TLA b  
 3  
 R2 from trunk 2a  
 AE2 to Stn. 2a  
 AT2 to TLA a  
 4  
 T2 from trunk 2b  
 BE2 to Stn. 2b  
 BT2 to TLA b  
 5  
 R3 from trunk 3a  
 AE3 to Stn. 3a  
 AT3 to TLA a  
 6  
 T3 from trunk 3b  
 BE3 to Stn. 3b  
 BT3 to TLA b  
 7  
 R4 from trunk 4a  
 AE4 to Stn. 4a  
 AT4 to TLA a  
 8  
 T4 from trunk 4b  
 BE4 to Stn. 4b  
 BT4 to TLA b  
 9  
 -  
 -  
 TA4 to SLA* a  
 10  
 -  
 -  
 TB4 to SLA* b  
 11  
 -  
 -  
 TA3 to SLA* a  
 12  
 -  
 -  
 TB3 to SLA* b  
 13  
 -  
 -  
 TA2 to SLA* a  
 14  
 -  
 -  
 TB2 to SLA* b  
 15  
 -  
 -  
 TA1 to SLA* a  
 16  
 -  
 -  
 TB1 to SLA* b  
* = or to free analog port  

 Table 3-174   ALUM4 - Interface Assignments (for U.S. only)
 Pin  
 X3
(to MDF)  
 X4
(to MDF)  
  Y-Cable from X6 to TMGL4  
 Y-Cable from X6 to Analog Ports1  
 Pin  
 Assignment  
 Pin  
 Assignment  
 1  
 R from trunk 1  
 R to station 1  
 1  
 T to TMGL4 port 1  
 9  
 T to analog port 4  
 2  
 T from trunk 1  
 T to station 1  
 2  
 R to TMGL4 port 1  
 10  
 R to analog port 4  
 3  
 R from trunk 2  
 R to station 2  
 3  
 T to TMGL4 port 2  
 11  
 T to analog port 3  
 4  
 T from trunk 2  
 T to station 2  
 4  
 R to TMGL4 port 2  
 12  
 R to analog port 3  
 5  
 R from trunk 3  
 R to station 3  
 5  
 T to TMGL4 port 3  
 13  
 T to analog port 2  
 6  
 T from trunk 3  
 T to station 3  
 6  
 R to TMGL4 port 3  
 14  
 R to analog port 2  
 7  
 R from trunk 4  
 R to station 4  
 7  
 T to TMGL4 port 4  
 15  
 T to analog port 1  
 8  
 T from trunk 4  
 T to station 4  
 8  
 R to TMGL4 port 4  
 16  
 R to analog port 1  
Note: Pinouts shown are at the board itself. The supplied main distribution frame cable (MDF cable) reverses the signal order for X3 and X4 before the MDF.  
1To the analog station ports on the CBCC (recommended) or to four consecutive ports on an 8SLA board.

ALUM module block diagram  
 Figure 3-127   ALUM4 - Basic Structure
 

HiPath 3000/5000 V9, Service Documentation, Issue 7   up Top
Disclaimer & Copyright   ID: P31003H3590S100017620   2012-06-25