7
*
*
EOLR
120 OHMS, 1/4W
P/N 140-820150
RS-485 RATINGS:
8V P-P
150mA MAX
80 OHMS MAX
18 AWG MIN
1
2
3
4
EOLR
120 OHMS, 1/4W
P/N 140-820150
EOLR
120 OHMS, 1/4W
P/N 140-820150
*
OMIT THIS EQUIPMENT FOR STYLE 4 XNET
REFER TO NIM-1R OR NIM-1W
INSTALLATION INSTRUCTIONS
P/N 315-092953 OR P/N 315-099165,
AS APPLICABLE
TB3
NIM-1R/-1W
MOM-4
D2325CPS*
D2325CPS
-4
-3
-2
-1
-4
-3
-2
-1
(DO NOT USE)
(DO NOT USE)
-DATA
+DATA
(DO NOT USE)
(DO NOT USE)
-DATA
+DATA
SUPERVISED
SUPERVISED
t
n
e
r
r
u
C
e
l
u
d
o
M
C
D
V
4
2
e
v
i
t
c
A
A
m
2
6
t
n
e
r
r
u
C
e
l
u
d
o
M
C
D
V
4
2
y
b
d
n
a
t
S
A
m
2
6
Figure 8
Wiring the RS-485 XNET Network
in Style 4 and Style 7 (MXL)
RS-485 NETWORK
The RS-485 MNET, XNET and HNET networks
connect to the D2325CPS on the terminal block with
the maDATA (1) and -DATA(2).
Terminals 3
and 4 are not used.
For Style 4 networks one
D2325CPS is needed at each Fiber Optic drop. For
Style 7 networks two D2325CPS modules are needed
at each drop.End of line devices are required on each
RS-485 pair in the system. Install them at the extreme
ends of each pair. Refer to Figures 7 and 8 (MXL)
and Figure 9 (FireFinder XLS/Desigo Fire Safety
Modular/Cerberus PRO Modular) for wiring instruc-
tions and ratings for both Style 4 and Style 7.
NOTE:
Positive and negative ground fault detected
when terminals shorted to earth.
FIBER CONNECTIONS
The D2325CPS can function as both a
repeater
and an
end point
unit.
When used as an end point,
connect
to the fiber connectors labeled
A
. Make no connec-
tion to the
B
connectors.
In the repeater mode,
use
both pairs of connectors,
A
and
B
.
Two Fiber Optic cables are required between each pair
of D2325CPS modules. Use a high quality duplex Fiber
Optic cable containing 9/125 fiber. Duplex fiber optic
cable has two cables in a single shield similar to
electrical
zip cord
. Use ST style fiber connectors.
Please contact the fiber manufacturer regarding
instructions for terminating the fiber.
When installing the fiber pairs, each fiber must
connect between the transmit data (DATA XTMR) on
one D2325CPS and the receive data line (DATA REC)
on the other D2325CPS.
The D2325CPS fiber connection is classified as Style
DCLB and Style DCLA per ULC-527.
INDICATORS
The D2325CPS has five LED indicators for Power
and Status.
The LEDs are located on the side of the module with
the Fiber Optic connectors. The
Power
LED is green
and lights whenever there is 24 VDC. Both channels
A
and
B
have a yellow and green LED. The green LED
indicates that the D2325CPS is transmitting data on that
channel. The yellow LED lights when data is received.
ELECTRICAL RATINGS
Input Power
18-31 VDC, 62mA max
Battery Power
24 VDC, 62mA max
RS-485
8V (P-P), 150mA
max
