Ericsson LBI-39055 manual Audio Links, Personal Computer, PC-To-Audio Tower Interconnect Cable

						LBI-39055
∙ Test Options - All Disabled (or factory defaults)
∙	Dial Line Options - (not applicable; leave at factory			PA #1	PA #2
	defaults)			RELAY 1	RELAY 1
∙	Speaker Options
	Volume Control = Low			RELAY 2	RELAY 2
				LINE A	LINE A
	Control = On Until Carrier Detect			SELECT AUDIO		UNSELECT #2
				AND MIC
						(LINE C), (LINE
Audio Links				LINE B	LINE B	OUT PAIR NOT
						USED)
	Audio Concentrator Cards at the back of the CEC/IMC			UNSELECT #1		CD PATCH AUDIO
				(LINE OUT PAIR		(LINE D)
cabinet provide audio connections at the CEC/IMC. See the				NOT USED)		OR
				DIG. IN 1	DIG. IN 1	UNSELECT #3
customer-specific system documentation print-outs for
Concentrator Card connector pin-out details.
	At the C3 Maestro, audio connections terminate at			DIG. IN 2	DIG. IN 2
RJ-11 modular jacks on the		Audio PA Board(s) in	the
Audio Tower. These jacks are labeled "LINE A" and "LINE
B". Table 6 shows line requirements between the			C3
Maestro and theCEC/IMC for each audio input or output
2-wire pair. Note that two (2)		output pairs, Line B out on
board #1 and Line A out on board #2, are never used. Table				Figure 7 − Audio PA Boards' Modular Jacks

5gives the modular jack pin-outs and Figure 7 shows their locations. Interconnect the required pairs between the Audio PA Board(s) and the appropriate CEC/IMC Audio

Concentrator Card. Shielded pairs are recommended.	PERSONAL COMPUTER
TABLE 5 − CONSOLE-TO-CEC/IMC BALANCED	PC-To-Audio Tower Interconnect Cable
LINE AUDIO INTERCONNECTIONS

STANDARD 6-POSITION 4-CONTACT RJ-11 PIN NUMBER

*

1

2

3

4

5

6

AUDIO PA

BOARD

6-POSITION

4-CONTACT RJ-11 PIN NUMBER

(none)

1

2

3

4

(none)

TO/FROM

CEC/IMC

(n/a)

CIM Line Out

CIM Line In

CIM Line In

CIM Line Out

(n/a)

The PC-to-Audio Tower Interconnect Cable (part number P29/1030050000) must be connected between the PC and the Audio Tower. This cable has male DB-37 connectors on both ends with the connectors' pins wired in

astraight-through pin-to-pin fashion - pin 1 to pin 1, pin 2 to pin 2, etc. The cable is ten (10) feet long and it should not be lengthened.

Mate one male DB-37 connector to the Logic Board and mate the other to the Audio Matrix Board's connector labeled "COMPUTER".

NOTE

Do not over-tighten the screws on the DB-style connectors.

* RJ-11 pins 1 and 6 are not used.

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