Apple ColorLaserWriter 12/600PS - Manual (Page 56)

3 Connect the printer to the Ethernet network in one of these three ways:
m To connect the printer to the end of an Ethernet network, use the Ethernet
cable to connect the empty socket of the nearest device’s transceiver to the
printer’s transceiver, as shown here.
m To connect the printer between two devices on an Ethernet network,
disconnect one Ethernet cable from the transceiver of the device
immediately to the left or right of the printer and plug it into the new
printer’s transceiver. Then use the new Ethernet cable to connect the free
socket on the printer’s transceiver to the socket you freed on the other
device’s transceiver.
m To connect the printer to an Ethernet hub, see the documentation that came
with the Ethernet hub.
31 Setting Up the Color LaserWriter 12/600 PS