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F.
MUX Unit
ON~OFF
I
CH 1
~
II
g~ ~
RLB
ON LINE
FAIL
RLB SET
~
CH4
~
R LB. piano switch:
ISS 3, NECA 365-407-301
CHANGE-2
ON:
Sends loopback command to remote
station when set to ON.
OFF:
Normal status
NOTE:
1. Before setting R LB switch to ON, A LM unit
MAINT SW must be ON.
2. CH NOs corresponding to R LB SWs are CH 1
through CH4 from the top.
ON LiNE, green LED:
Indicates unit is online when lit.
FAIL, red LED:
Indicates unit faih.Jie when lit.
R LB SET, red LED:
Indicates that ALB switch is ON when lit.
t
Figure 3-7 A MUX Unit (X0300A2/82) Controls and Indicators
t
Page 15A/B
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