User's Manual

MDS 05-6302A01, Rev. B MDS Mercury 16E Technical Manual 51
Normally, the transceiver is adequately grounded if the supplied flat
mounting brackets are used to mount the radio to a well-grounded metal
surface. If the transceiver is not mounted to a grounded surface, it is rec-
ommended that a safety ground wire be attached to one of the mounting
brackets or a screw on the transceiver’s case.
The use of a lightning protector is recommended where the antenna
cable enters the building; Bond the protector to the tower ground, if pos-
sible.
6.4 LAN Port
The transceiver’s LAN Port is used to connect the radio to an Ethernet
network. The transceiver provides a data link to an Internet Pro-
tocol-based (IP) network via the Base Station. Each radio in the network
must have a unique IP address for the network to function properly.
NOTE: Mercury transceivers are auto-sensing (auto-mdix) and can
connect to a hub or a PC using either a crossover or
straight-thru LAN cable.
The radio’s LAN port uses standard Ethernet RJ-45 cables and wiring.
For custom-made cables, use the pinout information in Figure 34 and
Table 14.
Figure 34. LAN Port (RJ-45) Pinout
(Viewed from the outside of the unit)
6.5 COM1 Port
To connect a PC to the transceiver’s COM1 port use a DB-9M to DB-9F
“straight-through” cable. These cables are available commercially, or
Table 14. LAN Port (IP/Ethernet)
Pin Functions Ref.
1 Transmit Data (TX) High
2 Transmit Data (TX) Low
3 Receive Data (RX) High
4 Unused
5 Unused
6 Receive Data (RX) Low
7 Unused
8 Unused
1 2 3 4 5 6 7 8