Cabling The Connectors - 3Com SuperStack II User Manual

20 C 2: I
HAPTER NSTALLING THE
Cabling the
Connectors
H
ARDWARE
2 Hold the chassis between the poles of the rack and attach the brackets to
the rack using panhead screws (you must provide these screws). Tighten
each screw securely.
CAUTION: Using fewer than two screws to secure the brackets to the
rack may cause the boundary router to fall and sustain damage not
covered by the warranty.
The SuperStack II NETBuilder SI bridge/router has two Ethernet ports,
either two or four serial ports depending on the model, and one of the
following WAN ports: ISDN S/T (43x and 53x), ISDN U (44x and 54x),
56/64 Kbps CSU/DSU (45x and 55x), or T1/FT1 CSU/DSU (46x and 56x).
This section describes how to cable each port on your bridge/router.
Boundary router models can use only one Ethernet port and only one
serial or WAN port can be active at a time. You can cable the remaining
serial or WAN ports to be used as back-up. If you upgrade to full router
software, the second Ethernet port and back-up serial ports will be
functional.