ASCOM NUBM3-HE Installation Manual page 10

Terminating the Room Bus RJ45 Connectors
8 Terminating the Room Bus RJ45 Connectors
The NUBM3–HE includes two active room bus RJ45 sockets. Crimp the RJ45 connector(s) to the room bus
cable(s) using the Ethernet T-568B termination color scheme. The following figure shows the correct pinout
for terminating the active room bus cables.
RJ45 connector for active room bus cable
For easy mounting of the RJ45 connector, use Easy RJ45 connectors that allow feeding excess wire length
through the connector. When crimping, the excess wire length will be cut automatically.
(Easy) RJ45 connectors are not included and must be ordered separately.
Easy RJ45 connectors require a dedicated crimping tool (not included) that includes a cutting
mechanism to cut the excess wire when crimping the connector on the cable.
RJ45 Connector on Cat 6/7 Cables
Caution: Cat 6/7 cables may be too stiff to handle using the normal terminating procedure,
which can result in putting to much stress onto the switch module when it is mounted onto
the backbox.
Therefore remove an appropriate portion (1) of up to 15cm (6in.) of the outer jacket before
crimping the RJ45 connector onto the Cat 6/7 cable.
Note that the individual twisting of the wire pairs should remain intact up to the RJ45
connector.
9
INSTALLATION GUIDE
Bedside Module (NUBM3-HE)
TD 93505EN / 28 February 2022 / Ver. A