Kathrein VOS 137/RA Mode D'emploi page 12

Operating elements and insert positions (Fig. VOS 139/RA)
PG 9 thread for the connection
of an IP 54 cable gland
(for VOS 139/RA remote feeding
via external cable - not included
in the scope of delivery)
Terminal for remote feed
voltage (only VOS 139/RA)
Potential
equalisation
terminal
Position "A" and "B": Position of the fuses for remote feeding
VOS 138/RA:
• Fuse T2AH/250 V with insert holder in position "A" as power supply unit fuse
VOS 139/RA:
• 2 fuses T6.3AH/250V with insert holders (included in the scope of delivery)
• Fuse fi tted in position A: Remote feeding via the input
• Fuse fi tted in position B: Remote feeding via the output
• Both fuses fi tted in position A and B: Remote feeding via input or output with through feed
The remote feed fuses function as connection elements.
Forward path Return path
Upstream
Downstream
X12
X2
X1
on
off
X11
Forward path
Downstream
Input
S1 S2
active
X7
passive
off
Fuses:
VOS 137/RA: T800mAE/250 V
VOS 139/RA: T2AH/250 V
VOS 138/RA: T2AH/250 V at position "A"
VOS 139/RA: T6.3AH/250 V
Return path
Upstream
active
passive
off
on
off
0
Test socket 1
X5
X6
S3
active
passive
X10
0 3 6
4 / 8
LED
(Power supply
function)
active
passive
off
3 6
Test socket 2 Output
X8
off
X3
X9
X4