Black Box Local Mux-6 User Manual page 21

LOCAL MUX-6
Item Indicator
1 Power
2 Test
3 Local Sync Loss
4 Remote Sync Loss
Item
5
6
22
Table 4-1. Local Mux-6 Indicators.
Function
Green LED lights when power is present.
Yellow LED lights when either local or remote
unit is performing a test.
Red LED lights when synchronization is lost at
the local unit.
Red LED lights when synchronization is lost at
the remote unit.
Table 4-2. Local Mux-6 Switches.
Switch Function
LLB When pressed (pushed in) the unit performs
local loopback.
RLB When pressed (pushed in) the unit performs
remote loopback.