687. External device control interfaces7-1. LAN connectionUse LAN cables to connect the AW-HE50, AW-RP50 and host computer.When connecting the unit directly to another device, use a crossover cable.For network connections via a device such as a hub, use straight cables.When a hub is not going to be used, ensure that the length of the LAN cable does not exceed 100 meters (328 ft.) (when aCAT5E cable is used). For further details on the AW-HE50 and AW-RP50 connections and settings, refer to “2-2-2. Example of connections”. For details on the functions available when connection has been made to the host computer, refer to “8. Connections with acomputer”.7-2. TALLY/GPIThe TALLY/GPI connector features five contact input portsfor controlling the unit from an external device and sevenopen collector output ports for outputting the tally and statusinformation from the unit to an external device.D-sub 15-pin, female, inch thread8 115 9Pinno. Signal Input/output Details of signal Operation1 TALLY OUT1 Open collector output Tally output of input image 1 A low-level signal is output during tallyoutput.2 TALLY OUT2 Open collector output Tally output of input image 23 TALLY OUT3 Open collector output Tally output of input image 34 TALLY OUT4 Open collector output Tally output of input image 45 TALLY OUT5 Open collector output Tally output of input image 56 ALARM Open collector output Fan alarm or power alarm output A low-level signal is output when troublehas occurred.7 KEY ON Open collector output Key combination status output A low level is output during keycombinations.8 (RESERVE) Contact input (Reserve)9 NC Not used10 Tally Disable Contact input Tally signal enable/disable This signal is enabled by the contactinput (and disabled when open).11 AUTO Contact input AUTO button of transition part The signal is made operational by thecontact input (30 ms or more).12 CUT Contact input CUT button of transition part13 KeyON Contact input KEY ON button of transition part14 PinPON Contact input PinP button of transition part15 GND Ground GroundComGPI OutALARM OutTally LEDExample of an open collector output connectionEnsure that the conditions given below are satisfied.Dielectric strength: Max. DC 24 VCurrent: Max. 50 mAAW-HS50 (Max. voltage: 24 V)(Max. current: 50 mA)ComGPI In+3.3 VExample of a contact input connectionProvide contact inputs.AW-HS50