11
EVD-2 • 5401042 • REV L • 03/05
RECOMMENDED WIRING
Figure 4 shows the recommended wiring for an EVD-2 system with two additional EVD-R
remote pickups. (All wiring should be as specified 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. Without a safe contact, the EVD-M requires the standard, factory installed, cable
clamp, (Potter #5280104) for the configuration shown in Figure 4.
3. If a safe contact is not connected, the factory installed jumpers on pins 4-5 and pins
7-8 of the EVD-R must not be removed.
4. Wiring to or from remote pickups must be UL listed, shielded, twisted-pair cabling,
(See Table 1). The EVD-R remote pickup network wiring must not exceed
2000 feet.
5. Connections to UL listed control unit via UL listed, high security cable, or alternates
(See Table 1). See Figure 5b & 5c for 4 or 6 wire installation wiring.
6. Only the last EVD-R remote pickup requires the 10K Ohm, 1% end of line resistors.
Remove the factory installed end of line resistors from all other EVD-R's and the
EVD-M.
7. Connections to dry contacts from any UL listed safe contact. Last EVD-R is the
preferred unit for connections to the safe contact. However, all EVD-R remote
pickups accept safe contact wiring. Additional safe contacts can be wired into
other EVD-R remote pickups, the EVD-M or a UL listed tampered junction box. If the
safe contact is wired into the EVD-M, use the alternate cable clamp. (Potter
#5280105)
8. The EVD-M 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. Connections to remote test annunciator or RTA and/or connection of dry contacts
from any UL listed central station test unit. Refer to Figure 5 for detailed information
on annunciator and remote test interconnections.
10. Terminals 1-12 on EVD-R are power limited.
11. Terminals 1-15 on EVD-M are power limited
Table 1. RECOMMENDED WIRE TYPES
Control Unit Connections Remote Pickup Connections
Remote Test/ Annunciator
Connections
Potter #5210408
Required for UL Safe
Complete installations
Belden 8761 or Alpha 2401C Belden 8444 or Alpha 1174C
4 Wire Hookup
Belden 9512
General Cable C0762
6 Wire Hookup
Belden 9513
General Cable C0763
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