Brother International HL-2400C Service Manual - Page 109
Open Collector Output
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(3) Connector Pin Assignment ACN1 Manufacture: MoLex Type: 53313-2215 Pin # Signal Name Interface 1 +5V-1 +5V-1 Output 2 SGND Signal Ground (+5V type ground) 3 +5V-1 +5V-1 Output 4 SGND Signal Ground (+5V type ground) 5 ACSYNC-N AC Zero-Cross Signal (Open Collector Output) 6 SGND Signal Ground (+5V type ground) 7 +24V +24V Output not through Door Switch 8 SGND Signal Ground (+5V type ground) 9 +5V-1R +5V through the relay when +24V-1 is shut down, 10 ACOFF-P AC Forced Shut-Down Signal(Pull-up required) 11 HON-N Heater On Signal (Pull-up required) 12 Test I2 Terminal for Dielectric Strength Test 13 +24V-1 +24V Output corresponding to Door Switch. 14 Test O2 Terminal for Dielectric Strength Test 15 +24V-1 +24V Output through Door Switch 16 Test I1 Terminal for Dielectric Strength Test 17 +24V-1 +24V Output through Door Switch 18 Test O1 Terminal for Dielectric Strength Test 19 PGND Power Ground (+24V type ground) 20 PGND Power Ground (+24V type ground) 21 PGND Power Ground (+24V type ground) 22 PGND Power Ground (+24V type ground) ACN2 Manufacture: MoLex Type: 5277-02A Pin # Signal Name Interface 1 DSW-O 2 DSW-I +24V Output through Door Switch +24V Output through Door Switch ACN3 Manufacture: MoLex Type: 5566-04A Pin # Signal Name Interface 1 +5V-2 +5v-2 Output 2 +5V-2 3 SGND 4 SGND +5v-2 Output Signal Ground (+5V type ground) Signal Ground (+5V type ground) IV-60