4
Figure 4
Typical Riser Connections
All wiring must conform to National and Local codes.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
AUDIO RISER 1 +
AUDIO RISER 1 +
AUDIO RISER 1 -
AUDIO RISER 1 -
AUDIO RISER 1 SHIELD
AUDIO RISER 1 SHIELD
TO THE NEXT
OCC-1 IN THE
SYSTEM
FROM THE TBM
OR PREVIOUS
OCC-1 IN THE
SYSTEM
SUPERVISED, POWER LIMITED
SEE NOTES 1 AND 2
EOL
+
+
+
-
-
-
SHIELD
SHIELD
SHIELD
AUDIO
RISER 2
AUDIO
RISER 3
TELEPHONE
RISER
TO CHANNEL A AMPLIFIER 1 INPUT +
TO CHANNEL A AMPLIFIER 1 INPUT -
TO CHANNEL B AMPLIFIER 2 INPUT +
TO CHANNEL B AMPLIFIER 2 INPUT -
TO CHANNEL C AMPLIFIER 3 INPUT +
TO CHANNEL C AMPLIFIER 3 INPUT -
TERMINATE THE
SHIELD ONLY AT
THE EL-410C/D
AMPLIFIER
SUPERVISED, POWER LIMITED
PLACE AMPLIFIER INPUT AND OUTPUT CABLES
IN SEPERATE CONDUITS
SEE NOTE 4
TO TERMINAL 8,
EL-410C/D
FOR USE WITH PL864-25S ONLY
*
*
CONNECT AN EOL ONLY IF
THIS IS THE LAST OCC-1 CARD
Notes:
1. If this OCC-1 is the last or the only OCC-1, terminate the
inputs shown as follows:
Audio risers:
10K, ½W, 5% (P/N 140-820396)
Telephone riser:
5.6K, ½W, 5% (P/N 140-820390)
2. Maximum loop resistance: 20 ohms for telephone and audio
risers.
3. Minimum wire size:
18 AWG twisted pair, shielded
Maximum wire size:
14 AWG twisted pair, shielded
4. Configure Generic input with CSG-M for either NC or NO dry
contact input or normally low or normally high 5/24 VDC input.
Generic input supervision is enabled in CSG-M for any type of
power failure.
a.
Wire the NC or NO dry contact input across terminals
13 and 14.
b.
Wire the normally low or normally high 5/24 VDC input
to terminal 14. (Normally low = high going input;
Normally high = low going input. The EL-410C/D power/
battery supervision is normally low input.)
5. Refer to Wiring Specification for MXL, MXL-IQ and MXLV
Systems, P/N 315-092772 revision 6 or higher, for additional
wiring information.
6. Positive and negative ground fault detected at <70K ohms
for terminals 17-22.
Summary of Contents for OCC-1
Page 7: ...7 ...
