VictelGlobal ALK300 series, Operation Manual, Page: 9 / 17

10— Bus Line Interface
The bus line interface is used for the connection between
transceivers, and between transceivers and wired equipments, realizing
extension of traffic channels which can be maximum of 12.
11— Second Pulse LED
The second pulse LED shall flash once a second when the second
pulse of the channel is normal, or it shall be off.
12— Ethernet Port
The Ethernet port is controlled independantly by the CCM. It is used
to connect the transceiver to PC or network switch via cable.
13— Side Board Interface
The side board interface is used to connect the side board to the
transceiver. The side board refers to the board on the right of the
transceiver where the ‘red’, ‘yellow’ and ‘green’ buttons rely.
14— Megaphone
The megaphone can be powered on and off. The user can monitor
the audio signals demodulated from the receiver by powering on the
megaphone.
2.1.2 Back View of the ALK300 Series Transceiver