19
Style 4 Repeater Connection - Application 9
(See Figure 11)
The RCM-1 can be used as a repeater when the
required global riser exceeds 100 ohms. Do not
install more than two repeaters in any global
riser.
Figure 11
Riser Repeater
Port B receive from transmit out on
last RCM in the old global riser.
Port B transmit pair to receive inputs
on first RCM in the new global riser.
To OCC-1, TB 2/TB4, 1
To OCC-1, TB 2/TB4, 2
To TBM-2, TB5, 1
To TBM-2, TB5, 4
+
+
_
_
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
NOT USED
CABLE TO
MMB OR PSR
P/N 555-190967
RCM-1
OMM-1
or
OMM-2
NOT USED
NOT USED
Notes:
1. Use 18AWG minimum wire.
2. Limit the maximum resistance of loop total from the first RCM to
the last RCM to 100 ohms. Maximum line capacitance = 1µF.
3. The wiring is power limited to NFPA 70 per NEC 760.
4. Maximum voltage is 1.5V RMS.
5. Maximum current is 50mA.
6. Refer to Figure 12 for proper EOLR placement.
7. Refer to Wiring Specification for MXL, MXL-IQ and MXLV
Systems, P/N 315-092772 revision 6 or higher, for additional
wiring information.
8. Positive and negative ground fault detected at <50K ohms for
terminals 17-20.
*
Refer to Application 9,
page 9, for Location B
and Location B*.
S
G
N
I
T
T
E
S
2
S
W
S
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p
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c
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e
D
n
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i
t
a
c
o
L
B
n
o
i
t
a
c
o
L
*
B
1
g
i
f
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c
r
e
p
p
o
C
f
f
o
f
f
o
2
g
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c
r
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p
p
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C
n
o
n
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3
g
i
f
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c
r
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p
p
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C
n
o
n
o
4
r
e
t
a
e
p
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r
r
e
p
p
o
C
n
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f
f
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5
g
i
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c
r
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b
i
F
n
o
n
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6
g
i
f
n
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c
r
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b
i
F
n
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n
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7
7
e
l
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t
S
n
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n
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