A–4
DECbridge 500/600 Series Problem Solving
A.3.2 ThinWire Interface
The following rules and guidelines are for connecting a DECbridge 500/600 series
unit to an IEEE 802.3/Ethernet network via the ThinWire interface.
•
The maximum length for a continuous segment of ThinWire cable is 185 me-
ters (606.9 feet).
•
The minimum bend radius of ThinWire cable is 2 centimeters (.75 inches).
•
No more than 30 stations are allowed on a segment. The DEMPR, if confi-
gured, counts as one station. In a DECconnect configuration with faceplates
and satellite equipment rooms, only 28 stations are allowed.
•
No more than 60 male/female connector junctions are allowed on the seg-
ment.
•
The ThinWire cable must be properly terminated at both ends with 50-ohm
terminators. If a DEMPR is attached to one end of the cable, the DEMPR
provides the termination for that end; a terminator is still required for the oth-
er end.
