Pyronix Matrix Series Installation Manual page 24

Matrix 832 / 832+ / 424
Example 2
This is now an acceptable solution because the ground return is shared between 2 cores of cable. Referring
to table 2, the second column shows that by doubling up the ground return it is acceptable to have up to 4
'KEN' on a 100m length of cable.
AUX+/K+
KD
AUX-/K-
Example 3
This is now an acceptable solution because there are now two separate cables connecting the devices back
to the Matrix control panel. The 100m cable is now supporting 3 'KEN' and is now in accordance with table 2,
and the 50m cable is supporting 1 'KEN' which is well within the limits.
AUX+/K+
KD
AUX-/K-
Page 18
50m.
Keypad
1
(1 KEN)
ACCEPTABLE SOLUTION
50m.
Keypad
1
(1 KEN)
ACCEPTABLE SOLUTION
100m.
Keypad Output
2 Expander
(1 KEN) (2 KEN)
100m.
Keypad Output
2 Expander
(1 KEN) (2 KEN)
RINS428-5