Table of Contents
Advertisement
3.1.6
Cables and Connectors
The cable used to connect the 30/60 Mbps PIDU to the ODU can be any standard CAT 5 type
provided that it is suitable for outdoor deployment. Motorola recommends that cables to the
specification below be used.
NEC/CEC: CMR (ETL) C (ETL) 75C SUN RES OIL RES II
Failure to use the recommended (or equivalent) standard of cable may invalidate the system's
safety certification.
The 30/60 Mbps PIDU cable may be unshielded (UTP) or shielded (STP). However,
unshielded cables reduce the system's ability to cope with nearby lightning strikes. If lightning
activity is common in the area of deployment, the use of shielded cable is highly recommended.
See Section 11 "Lightning Protection".
The connection between the 30/60 Mbps PIDU and user's equipment can be made using any
standard CAT5 patch cable. The RJ45 Ethernet connection is presented as a piece of network
equipment. However as automatic MDI/MDI-X sensing and pair swapping is employed a
crossed or no crossed Ethernet patch cable can be used for connection to another piece of
networking equipment or directly to end user equipment.
It should be noted that the 30/60 Mbps PIDU provides continuity between the shield on the
ODU to 30/60 Mbps PIDU cable and shield on the 30/60 Mbps PIDU-User equipment cable. If
continuity of the shielding is desired from the ODU-PIDU to the user's equipment, CAT 5 STP
cable and connectors should be used for the latter connection. CAT5 STP cable between the
30/60 Mbps PIDU and the user's equipment will provide additional protection against surges
induced on the Ethernet connections.
3.1.7
Surge Arrestor
The 30/60 Mbps PIDU does not provide lightning or surge suppression. Should lightning or
surge suppression be required a separate Ethernet surge suppressor should be used and
appropriately grounded. Suitable surge suppressors can be sourced from your Motorola
distributor or reseller. The ODU is protected by built-in surge suppression as standard. See
Section 11 "Lightning Protection".
3.1.8
Mounting Brackets
The 30/60 Mbps Backhaul is supplied with a mounting bracket suitable for mounting the ODU
to a pole of 25mm to 75mm in diameter. For more details on mounting, see Section 7
"Installation".
The bracket allows for adjustment in both azimuth and elevation. The bracket may be mounted
to the pole prior to installation. This allows the installer to take the weight of the unit on a single
mounting bolt while fitting the retaining nut and washers.
The 30/60 Mbps PIDU can either be desk or wall mounted. The preference is wall mounted with
the cables dressed to a cable channel. Remember to leave space for access to the reset
button. See Section 7.7.7.
3.1.9
Configuration and Management
Configuration and Management of the 30/60 Mbps Backhaul is implemented using a built-in
web server hosting a number of Configuration and Management web pages. This approach
allows Configuration and Management to be carried out on any standard web browsing
technology. The 30/60 Mbps Backhaul can also be managed remotely using the SNMP
management protocol. Connection to the 30/60 Mbps Backhaul is via the Ethernet connection
carrying the bridge network traffic. Connection to the unit is via a preset IP address. This
address can be changed via the Network Interface Configuration web page. A full explanation
of the available web pages and their use can be found in Section 8 Web Page Reference .
Issue 3.1, July 2006
Page 24 of 162
Advertisement
Table of Contents
