Owner`s manual

CPU Module
4-11
LED Name Description Status
SI1 RX Serial Port 1 – RX (receive)
Green LED
ON – Receiving Data
SI1 CM Serial Port 1 – CM (channel
monitor)
Green LED
ON – Channel Monitor is ON.
S2 TX Serial Port 2 – TX (transmit)
Green LED
ON – Transmitting Data
S2 RX Serial Port 2 – RX (receive)
Green LED
ON – Receiving Data
S2 CM Serial Port 2 – CM (channel
monitor)
Green LED
ON – Channel Monitor is ON
E1 RX Ethernet Port 1 (receive)
Green LED
ON – Receiving Data
E1 LNK Ethernet Port 1 (link)
Green LED
ON – Network Connected
PI2 TX Plug-in Port 2 – TX
(transmit)
Green LED
ON – Transmitting Data
PI2 RX Plug-in Port 2 – RX (receive)
Green LED
ON – Receiving Data
PI2 CM Plug-in Port 2 – CM (channel
monitor)
Green LED
ON – Channel Busy (if port is in use by radio,
RS485, or RS232)
– Network Connected (if an IP plug-in is
used)
USR1-
USR4
User application program
LEDs
Green LED
Controlled by the user application program.
Light consecutively and repeatedly one after
the other when entering boot mode.