Ericsson LBI-39076B Spezifikationen PDF herunterladen (Seite 20)

LBI-39076B INSTALLATION

Table 3 - Configurations by Interface Characteristic (Rev A Main Board)

INTERFACE JUMPER POSITIONS FOR JP1 THROUGH JP15 FUSES

CHARACTERISTIC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 F2 F3

Audio Circuit

2-Wire B B A A

4-Wire A+C A+C B B

Signaling

Loop Start A B A

Ground Start B A B A

E&M C+M IN IN

E-Lead Reference

External Reference IN A OUT

Internal Ground OUT A IN

Internal -48 V OUT OUT B IN

Idle M-Lead Reference

External Reference A IN not B OUT

Internal Ground B OUT IN

Internal -48 V A OUT IN

Busy M-Lead Reference

External Reference E IN not B OUT

Internal Ground M OUT IN

Internal -48 V E OUT IN

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 59 60

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Ericsson LBI-39076B Spezifikationen Seite 20