The article has detailed tables on the capabilities of each mechs electronic warfare suite including how many modules a specific mech can take. The Dev's could well be referencing this document???

Examples of mechs that will be in this game:
JR7-D Jenner
BK-309 Targeting and Tracking System
Target Aquisition Modifier: No (No bonus to-hit)
Multitargeting: 1 primary, 3 secondary
Target ID: No
Damage ID: No
Lock On Indicator: Yes (Incomming missle alarm)
Scanning Arc: 180 degrees
Scanning Modes: Infa red, Magnometer, Motion
Lock On Range: 570 meters
Expansion Ports: 3 (up to 3 modules)
Heat Suseptibility: 8, 16, 24, 32 (Battletech heat scale malfunction chance)
Repir Complexity: 0 (no bonus or penalty for tech to repair)
Reset: Y (Pilot can reset the System within seconds if heat causes it to fail)
Override: No (Allows pilot to overide weapons fire, useful in TT game, probably redundant in MW)
CN9-A Centurion (Well the original one anyways)
Corean B-Tech Targeting and Tracking System
Target Aquisition Modifier: No
Multitargeting: 1 primary, 1 secondary
Target ID: No
Damage ID: No
Lock On Indicator: Yes
Scanning Arc: 180 degrees
Scanning Modes: Infa red, Motion
Lock On Range: 930 meters
Expansion Ports: 5 (up to 5 modules)
Heat Suseptibility: 8, 16, 24, 32 (Battletech heat scale malfunction chance)
Repir Complexity: +1 (penalty for tech to repair)
Reset: No
Override: No
HBK-4G Hunchback
Tacticon Tracer 300 (280) Targeting and Tracking System
Target Aquisition Modifier: No
Multitargeting: 1 primary, 1 secondary
Target ID: No
Damage ID: No
Lock On Indicator: No
Scanning Arc: 90 degrees
Scanning Modes: Infa red, Motion
Lock On Range: 570 meters
Expansion Ports: 5 (up to 5 modules)
Heat Suseptibility: 8, 16, 24, 32
Repir Complexity: 0
Reset: No
Override: No
DRG-1N Dragon
Eagle Eye SY 10-10 Targeting and Tracking System
Target Aquisition Modifier: No
Multitargeting: 1 primary, 1 secondary
Target ID: No
Damage ID: No
Lock On Indicator: No
Scanning Arc: 45 degrees
Scanning Modes: Infa red, Motion
Lock On Range: 930 meters
Expansion Ports: 4 (up to 4 modules)
Heat Suseptibility: 8, 16, 24, 32
Repir Complexity: 0
Reset: No
Override: No
CPTL-C1 Catapult
O/P 1078 Targeting and Tracking System
Target Aquisition Modifier: No
Multitargeting: 1 primary, 1 secondary
Target ID: No
Damage ID: No
Lock On Indicator: No
Scanning Arc: 45 degrees
Scanning Modes: Infa red, Magnometer, Motion
Lock On Range: 930 meters
Expansion Ports: 5 (up to 5 modules)
Heat Suseptibility: 8, 16, 24, 32
Repir Complexity: 0
Reset: Yes
Override: Yes
AS7-D Atlas
Army Comp Type 29K Targeting and Tracking System
Target Aquisition Modifier: No
Multitargeting: 4 primary, 1 secondary
Target ID: Yes
Damage ID: No
Lock On Indicator: No
Scanning Arc: 180 degrees
Scanning Modes: Infa red, Magnometer, Motion
Lock On Range: 930 meters
Expansion Ports: 7 (up to 7 modules)
Heat Suseptibility: 6, 12, 18, 24
Repir Complexity: +3
Reset: No
Override: No