CTP Systems CTPhone 1900, Applications Manual

Page: 55 / 132

DOC00101-01 3-7
CTPhone 1900 System Hardware & Software Installation
6 If you want critical alarms registered by the CTPhone Con-
troller to activate an external alarm, connect pair 22 on con-
necting block P1 to one input on the external alarm device.
Then connect tip (normally closed) or ring (normally open) of
pair 23 on connecting block P1 to the other input of the alarm
device, depending on how you want the device to operate.
Figure 3-2. Optional External Alarm
7 Connect one end of each 25-pair shielded 24-gauge cable to
a 50-position metal hood. Ensure that the shield of the 25-
pair cable is grounded to the metal hood.
8 Connect one of the 25-pair cables to connector P1 (Figure 3-
3) on the CTPhone Controller. Punch down the cable on con-
necting block P1 on the MDF.
Figure 3-3. CTPhone Controller (Rear View)
9 Connect the other 25-pair cable to connector P2 (Figure 3-3)
on the CTPhone Controller. Punch down the cable on con-
necting block P2 on the MDF.
10 For instructions on connecting transmit and receive cables
installed in steps 4 and 5 to base stations, see See Mounting
Base Stations on page 3-8.
+
Cabling the CTPhone Controller
Lamp or Buzzer
Pair 22 – relay common
Pair 23, tip – normally closed contact
Pair 23, ring – normally open contact
Maximum switched power 60W
0.5A, 125 VAC resistive
1.0A, 48 VDC resistive
P1 P2 J2 J3 J1
RJ45
25-pair female connectors
-48 VDC
input
(to analog lines and base stations)
not
used
GND
power cord strain relief
(admin port)