Ultrak CRX-501, Installation And Operation Manual

Page: 28 / 65

2-14
Lens Functions Speed Control (Cont.)
Model CRX-502 and CRX-520 Only
Expansion Board
R14 Focus
R11 Zoom
R7 Iris
2.5.6 Auxiliary Contact Setup.
The auxiliary contacts are two Form C relays (NO, NC, C) rated at 6 Amps
(maximum). The mother board can be set up to provide 120 Vac at 0.25
Amp (max.) or 220 Vac at 0.125 Amp (max.), as applicable, on the contact
outputs for powering the auxiliary devices connected to Auxiliary Contact 1
and Auxiliary Contact 2. If the power input is 120 Vac, the power to the
auxiliaries is 120 Vac; if the power input is 220 Vac, the power to the
auxiliaries is 220 Vac. Install W10 to provide AC power on Auxiliary Contact
1. Install W11 to provide AC power on Auxiliary Contact 2.
CAUTION
When using the receiver to provide power
through the auxiliary contacts, the
maximum current available is 0.25 Amp per
auxiliary contact for 120 Vac power input
and 0.125 Amp per auxiliary contact for 220
Vac power input.
An external power source can be used for powering the auxiliary devices.
Remove jumper W10 for Auxiliary Contact 1 and W11 for Auxiliary Contact
2. The external power source is connected to the AC-COM and C Terminals
on Terminal Block TB3.