Potter EVD-1 User Manual
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EVD-1 • 5401043 • REV M • 9/07
EVD-1 Terminal Connections
Terminal Terminal Description
No. Name
1
(+)
Power Supply Connection, +12 VDC nominal (See note 1)
2
(-)
Power Supply Connection, 0 VDC (See note 1)
3
SPARE
Spare Terminal Block Position
7
RTN
Accessory Return Connection (See note 2)
8
TEST
Accessory Remote Test Input, Connect to RTN to Activate Test (See note 2)
9
ALARM
Accessory Remote Annunciator, Alarm (See notes 2, 3)
10
TAMPER
Accessory Remote Annunciator, Tamper (See notes 2, 4)
11
COM
Tamper Alarm Contact, Common
12
NC
Tamper Alarm Contact, Normally Closed in NON-TAMPER STATE
13
NC
Alarm Relay Contact, Normally Closed in NON-ALARM STATE
14
COM
Alarm Relay Contact, Common
15
NO
Alarm Relay Contact, Normally Open in NON-ALARM STATE
Notes
1.
Observe polarity of power supply connections. Application of voltages greater than 18 VDC may result in damage to unit.
2.
Connections to optional RTA, Remote Test Annunciator, or dry contacts from any UL listed central station test unit. See Figure 3 for details.
3.
Remote annunciator terminal provides power-limited +12 VDC when alarm contact is in its ALARM state. Limit current draw to 10mA.
4.
Remote annunciator terminal provides power-limited +12 VDC when tamper alarm contact is in its TAMPER state. Limit current draw to 10mA.
5.
Pins 1-3 and 7-15 are power-limited.
Recommended Wiring
Figure 2 shows the recommended wiring for two examples of EVD-1 controllers.
(All wiring should be as specifi ed in Table 1 or with UL listed equivalents.)
1. Cable clamp knockout locations are shaded. Be sure to remove clamp from base and to cleanly knock out cable openings in the cable clamp
before feeding wire through the clamp.
2. Connections to UL listed control unit via UL listed, high security cable, (See Table 1). See Figure 3b & 3c for 4 or 6 wire installation wiring.
3.
Connections to remote test annunciator or RTA and/or connection of dry contacts from any Underwriters Laboratories listed central station
test unit. Refer to Figure 3a for detailed information on annunciator and remote test interconnections.
4.
With a safe contact, the EVD-1 requires the alternate cable clamp, (Potter #5280105), as shown in Figure 2b.
5.
Safe contact circuit may be wired in series with protective alarm circuit.
6.
Connections to dry contacts from any UL listed safe contact. Refer to Figure 3b for wiring.
7.
Without a safe contact, the EVD-1 requires the standard, factory installed, cable clamp, (Potter #5280104), as shown in Figure 2a.
8.
The EVD-1 must be connected to a UL listed control unit or power supply capable of providing nominal 12 VDC and standby power. 72 hours
of standby power is required for bank vault alarms. 4 hours of standby power is required for mercantile alarms.
9.
Terminals 1 - 3 and 7 - 15 on EVD-1 are power limited.
Table 1. Recommended Wire Types
Control Unit Connections
Remote Test/Annunciator Connections
Potter #5210408 required for UL
Safe Complete installations
Belden 8444 or Alpha 1174C
4-wire hookup
Belden 9512
General Cable C0762
6-wire hookup
Belden 9513
General Cable C0763