Contemporary Control Systems EXP Expansion Modules User Manual - Manual (Page 6)

There are several LED indicators that assist in troubleshooting
the network. One LED indicator informs if the network has
undergone a reconfiguration. Another indicator senses if the hub
is properly generating internal hub signals. There are separate
LEDs that monitor the two internal power supplies.
1.2 Benefits
•
Compatible with the baseband ARCNET network
•
Compatible with all Contemporary Controls’ (CC) network
interface modules (NIMs)
•
Supports up to 48 ports in four-port increments
•
Two sizes of enclosures: 16 and 48 ports
•
Offers easy expansion with plug-in modules
•
Mixes coaxial, twisted-pair and glass fiber optic cable
in one hub
•
Isolates network faults with diagnostic LEDs
•
LED indicator identifies reconfiguration of the network
•
Minimizes hub jitter with precision delay line timing
•
Activity LEDs for each port
•
Provision for rack mounting
•
Watch-dog timer prevents hub lockup
•
Hub unlatch delay digitally controlled
1.3 Specifications
Mechanical
See diagrams on page 3.
TD401600-0M
O
2