Gent Single Channel Interface, LV Input only (no enclosure)

The S4-34410 monitors one input circuit on terminals 6 and 5. It accepts normally open or normally closed clean contacts with a 10K series resistor and a 10K end-of-line resistor over up to 300 metres. The channel can be configured as fire, fault or supervisory. Acceptance delays allow the input to remain active for a chosen period before it is accepted: up to 10 seconds for fire, or up to 300 seconds for fault and supervisory inputs. The module detects open and short circuit faults in every input mode.

The input can also connect a zone of conventional detectors and manual call points to the addressable loop. Every manual call point on that zone needs a 470 Ohm resistor or a 3V9 zener diode in series with its normally open contacts. The zone carries a load of up to 2mA quiescent and 9mA in alarm at 24V nominal, with a minimum operating voltage of 18V, over a run of up to 100 metres, and the circuit is terminated with the supplied end-of-line capacitor unit. The S4 LV range has a load factor of 26 for a zone-input configuration, with a maximum of 30 per loop. Zone input is supported on all compatible Gent addressable panels, Nano included.

The S4-34410 has no relay or LED output and no confirmation function. It monitors a contact or a conventional zone. Where a relay output is needed, the S4-34420 combines one input with a single-pole changeover relay rated 1A at 30V ac/dc into a resistive load. The S4-34450 provides any combination of up to four inputs or outputs.

Within the S4 LV trio, modules configured as switch inputs have a load factor of 1, with a maximum of 200 modules per loop. Like every module in the S4 low voltage range it is loop powered, includes a loop isolator for device isolation, and uses one of the 207 device addresses available on a loop, responding to regular polls from the control panel with its device type and the status, open, normal or short, of its supervised input circuit. The loop connects at terminals 4 to 1. The loop cable screen must be carried through each interface module, and the loop and switch input cable screens, where used, must connect to an earth terminal.

For Vigilon and 34000 systems, compatible firmware pairs are LPC V3.93 with MCC/MCB V3.94, or LPC V4.35 with MCC/MCB V4.37. Configuration is done with the Commissioning Tool software, version 1.21 or greater, where the channel is set to unused, to a fire, fault or supervisory input, or to a zone input, along with any acceptance delay.

The module comes with its plug-in terminal blocks, eight 10K resistors and one end-of-line capacitor unit. The white module measures 93 x 90 x 23mm and weighs about 92g without an enclosure. The M200E-SMB surface mounting box, formerly S4-34493, suits a single module. The S4-34492 small metal box has 20mm and 25mm knockouts, and the S4-34496 houses six interfaces together. S4-34491 DIN rail brackets come in packs of five for mounting inside other equipment. The module assembly has IP31 protection in the S4-34490 plastic box. The S4 low voltage trio operates from -10°C to +60°C, with storage from -30°C to +70°C and up to 95% non-condensing relative humidity at +5°C to +45°C.