Controlled Products Systems Group 1520-080 - Manual (Page 13)

Page 13
1.5 Terminal Description
The 1520 can operate on 16-volt AC power or 12-24 volt DC power. Current draw is 125ma. A 16-
VAC, 20 va power transformer is supplied with the unit. Do not power any other devices (electric
strikes, magnetic locks, lights, etc.) from this transformer.
Do not run power wiring greater than 500 feet. See chart below for wire size and distances. It is
preferable to keep power wiring as short as possible. A low voltage surge suppresser (P/N 1878-010)
is recommended. Be sure to properly ground the 1520. Attach a separate 12 AWG wire to terminal 3
(earth ground). Attach the other end of this wire to a good earth ground. This can be a properly
grounded metal conduit, a cold water pipe, or a grounding rod driven at least 10 feet into the soil. A
gooseneck post anchored or mounted on concrete does not make a good ground. Avoid any splices
in wiring. If a splice is made, it must be soldered and sealed in a watertight junction box.
TERMINAL DESCRIPTION
1 16 VAC, 20 VA Input Power or 12-24 VDC.
2 16 VAC, 20 VA Input Power or 12-24 VDC.
3 Earth Ground Only
4 Relay Common – 30 Volt, 1 Amp maximum.
5 Relay Normally Closed – 30 Volt, 1 Amp maximum.
6 Relay Normally Open – 30 Volt, 1 Amp maximum.
7 Switch Input. A closure between terminals 7 and 14 will cause the relay to activate for its
programmed strike time. The Postal Switch is connected here.
8 Not used.
9 Printer Output – Data (White).
10 Printer Output – Common (Black).
11 Printer Output – Busy (Green).
12 Not used.
13 Not used.
14 Common
15 Weigand Input – Data 0 (Green).
16 Weigand Input – Data 1 (White).
17 Weigand Input – Common (Black).
18 Weigand Input – 12 VDC Power (Red).
POWER WIRING
Wire Size Maximum Distance
22 AWG 100 Ft.
20 AWG 200 Ft.
18 AWG 250 Ft.
16 AWG 500 Ft.