Challenger10 Installation and Quick Programming Manual
15
• 160 Ω or less indicates that three or more devices are terminated
• 220 Ω is good (two devices are terminated)
• 470 Ω or more indicates that less than two devices are terminated
Checking LAN performance
Use Install menu option 23 Poll Errors to check for poll errors on the LANs. If the
rate of poll errors seems excessive, check the LAN cabling and termination.
Zone inputs
Zone inputs are also known as alarm inputs. A Challenger10 system can receive
alarm signals from:
• The Challenger panel’s onboard inputs numbered 1 to 16
• Inputs numbered 17 to 496 via Data Gathering Panels (DGPs) on LAN 1
• Inputs numbered 497 to 1008 via DGPs on LAN 2
Note:
Input numbers in the range 1000 to 1008 will not report CID alarms.
Each pair of zone input terminals may be connected to an alarm system device,
such as a detector or reed switch.
By default, the Challenger system can monitor zone inputs for four states
(sealed, unsealed, open circuit, and short circuit). This is accomplished by using
two end-of-line (EOL) resistors in each zone input circuit, as shown in Figure 7
below.
Note:
The Challenger system’s EOL resistor value is configurable in system
options. The default value is 10K, and all examples in this manual are based on
the default value.
Install EOL resistors in zone input circuits at the end of the circuit. If an alarm
device is connected, place the EOL resistors at the device’s connections. If a
zone input is not used, you don’t need to connect an EOL resistor if you program
the corresponding input number as type 10 (spare).
Tip:
Use sleeves on the resistor leads to prevent accidental shorting.
Figure 7: Four-state monitored zone input circuits
C
1
C
2
C
3
C
4
C
5
C
6
C
7
C
8
C
9
C
10
C
11
C
12
C
13
C
14
C
15
C
16
10K
10K
Normally closed
tamper contact
Normally closed
alarm contact
10K
Normally open
tamper contact
Normally open
alarm contact
10K
