9023927 - 2nd edition - May 2007
Page 11 of 72 Pages
Installing Dräger Polytron 7500
4-wire connection
– Installing the LON communication
●
Install the 4-wire connection cable in the cable gland, cut to length and strip ends
(about 80 mm).
●
Shorten the shield (if installed) to prevent short-circuiting.
●
Connecting the cable:
secure in terminals of 4-pin connecting terminal block – ensure correct polarity.
1
Slide the connecting terminal block back into holder until the lock clicks into
place.
0052392
7_1
.eps
+24V
0V
LON B
LON A
1