PMP Synchronization Solutions User Guide
Installing a CMM4
PMP-0297 007v001 (January, 2017)
3-66
Cabling a Rackmount CMM4
Perform the following procedure to cable the Rackmount CMM4:
Procedure 16 Cabling the Rackmount CMM4
1
Connect Ethernet cables as follows (see page 3-11 for typical diagrams and planning
information):
•
APs, BH10s, or BH20s (PTP 100 Series bridges), PTP 230 Series bridges: cable to
powered ports of the controller board. The controller board provides sync, power, and
surge suppression for these connections. A Cambium 600SS surge suppressor (model
number 600SSC or later) should be mounted outside the building or communications
hut on each line at the point of cable penetration to prevent over-voltages and over-
currents from entering the building and potentially damaging other electronic
equipment.
•
Terrestrial feeds under 100 Mbps (10/100BaseT): cable to an unpowered port of the
controller board. The controller board provides surge suppression for these
connections. A Cambium 600SS surge suppressor (model number 600SSC or later)
should be mounted outside the building or communications hut on each line at the
point of cable penetration to prevent over-voltages and over-currents from entering
the building and potentially damaging other electronic equipment.
•
Terrestrial feeds over 100 Mbps (1000BaseT Gigabit Ethernet): cable directly to the
Gigabit port of the external switch, and mount a Cambium PTP-LPU lightning
protection unit or equivalenton the outside of the building or communications hut at
the point of cable penetration if the CMM4 is located indoors.
•
PTP 400 Series bridges: cable to an unpowered port of the controller board. Install the
bridge’s PIDU (Powered InDoor Unit) also inside the building, and install a Hyperlink
Technologies AL-CAT6HP-JW surge suppressor or equivalent on the outside of the
building or communications hut at the point of cable penetration.
•
PTP 500 and 600 Series bridges: cable directly to the Gigabit port of the external
switch. Install the bridge’s PIDU (Powered InDoor Unit) also inside the building, and
install a Hyperlink Technologies AL-CAT6HP-JW surge suppressor or equivalent on the
outside of the building or communications hut at the point of cable penetration.
2
Connect the coax cable from the female N-connector on the GPS antenna to the female N-
connector on the outside of the CMM4.
3
For 29 V: Connect the white wire to +29V on either of the 29 VDC terminal blocks.
4
Connect the black wire to - V (GND) on the same 29 VDC terminal block.
5
For 56V: Connect the black and white wire to +56V on either of the 56 VDC terminal blocks.
6
Connect the black wire to –V (GND) on the same 56 VDC terminal block.
7
Plug the DC power supply into an AC receptacle (AC mains).
8
Verify that the LEDs light.
