Table B-1. Faceplate LED Indicators

	POWER - Yellow
	STATUS - Green
ONLINE	TEST - Off
	LOCKOUT - Off
	ONLINE - Green

	POWER - Yellow
	STATUS - Green
OFFLINE	TEST - Off
	LOCKOUT - Off
	ONLINE - Off

NOTE

Only one DS3 MUX is required for any data circuit to be operational. Two modules are used for electronics redundancy of the DS3 circuit.

2.2 Provision the DS3 MUX

NOTE

There are no settings on the SCU that will affect APS operation of either the DS3 MUX units or the LTU line cards.

2.2.1Logon to Total Access system.

2.2.2If you are building a new DS3 circuit, provision the DS3 MUX modules according to circuit parameters. If the HDSL H-LSS circuit is to be turned up in an existing Total Access 3010 with DS3 feed, assume that the parameters have already been set for the DS3 circuit. Disregard this step and continue.

2.2.3When channel mapping the DS3 MUX to individual slots configured for protection switching, it is necessary to map a channel only to the MAIN (odd- numbered) slot. If a fault condition occurs and a protection switch is made from the MAIN circuit to the AUX circuit, the channel is temporarily mapped by the DS3 MUX into the AUX (even-numbered) slot and a Failure notice attached to the MAIN (odd) slot. Follow the steps below for mapping a channel to the MAIN slot.

For this procedure, the technician needs to know which embedded G.703 in the incoming DS3 data stream to map to the appropriate APS slot in the Total Access 3010. Do not continue without this information. In a newly installed DS3 MUX, thathas not been changed from factory defaults, the embedded G.703s in the DS3 will be mapped to the like-numbered slot (i.e. G.703#1 to Slot 1, G.703#2 to Slot 2, up to G.703#28 to Slot 28).

a.Access the Main Menu of the DS3 MUX module and select Option 8, Channel Mapping.

b.At the bottom of the screen where you see “Selection or Enter Mapping (E1#/Slot#)”, enter the number of the embedded G.703 followed by “/” and the appropriate slot number, then <Enter>. This action will assign the desired G.703 to the slot in the Total Access 3010.

WARNING

Assigning the incorrect embedded G.703 from the DS3 to a slot in the Total Access 3010 could disrupt existing traffic.

2.2.4APS configuration of the DS3 MUX units is NOT required for the LTUs to be in H-LSS configuration. The two APS configurations operate independently of each other.

NOTE - APS Faceplate Pushbutton -

1.When activated with the Test/Enable switch on the Offline unit, it forces a switch to protection. (Offline MUX becomes Online MUX).

2.When activated with the Test/Enable switch from the ONLINE unit, it toggles the APS Lockout Status.

B-2

Section 61182007L1-5, Issue 1

61182007L1-5A