AMS Laserscope Greenlight HPS - Internal & External Connections and Pinouts
Directed Energy Systems
Last Updated: 9/26/2026

CANBUS BAUD RATE: 500,000
CHILLER RS-485 BAUD RATE: 38400

CANBUS PATH: DISP J300 -> LPS J310 -> LPS J300 -> RPB J310 -> RPB J300 -> DLB J310 -> DLB J300 -> RESONATOR

PDB: Power distribution board
RPB: Rear panel board
DLB: Data logging board
LPS: Laser power supply
DISP: UI touchscreen
LCB: Laser control board / resonator control board
RESONATOR: Laser head assembly and LCB (resonator control board)

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RPB J600 - Foot switch connection (Amphenol 9-pin twist-lock)
	1	GND (CHASSIS)
	2	STANDBY/READY PEDAL (NO)
	3	STANDBY/READY PEDAL (COM)
	4	YELLOW VAPOR PEDAL (NC)
	5	YELLOW VAPOR PEDAL (COM)
	6	YELLOW VAPOR PEDAL (NO)
	7	BLUE COAG PEDAL (NC)
	8	BLUE COAG PEDAL (COM)
	9	BLUE COAG PEDAL (NO)

RPB J700 (DB-25) - Chiller interface
	1 	GREEN					DIGITAL GROUND
	2 	BLACK					RS-485 B
	3 	RED						RS-485 A
	5 	WHITE/YELLOW			REMOTE COM
	6 	BLUE					REMOTE IN (~7V DC to enable)
	24 	BROWN/BLUE/BLACK		SPARE COM
	25 	BROWN/RED/BLACK			SPARE IN

RPB J200 - 24V DC power input
RPB J210 - DC power connection to PDB
RPB J620 - External interlock
RPB J630 - Autoselect board monitoring
RPB J710 - Diode stack flow switch
RPB J711 - E-STOP interlock
RPB J610 - E-STOP interlock chain (w/ diode driver)
RPB J720 - Fiber digital interface module
RPB J801 - Chassis fan
RPB J1000 - Q-switch driver power output
RPB J1005 - Q-switch driver fan
RPB J1010 - Q-switch driver status control
RPB J1030 - Q-switch driver logic control
RPB J1032 - Q-switch crystal thermal monitoring
RPB J1100 - Input power current transformer
RPB J1500 - RESONATOR control board power output
RPB J1501 - DLB power output
RPB J1502 - DISP power output

RPB J150X - DC power output (RESONATOR, DLB, DISP, spare)
	1	+24V DC
	2	GROUND
	3	+15V DC
	4	N/C
	5	+7V DC
	6	GROUND
	7	N/C
	8	GROUND

RPB J300 & J310 (DB-15) - CANBUS & RS-485 loop to LPS and DLB

DLB J200 - Power input

DLB J300 & J310 (DB-15) - CANBUS & RS-485 loop to RPB and RESONATOR
	1	CAN_HIGH
	2	+VCAN (5V)
	3	RS-485 TRANSCEIVER #1 (U310) B
	4	RS-485 TRANSCEIVER #3 (U312) A
	5	RS-485 TRANSCEIVER #4 (U313) B
	6	CAN_LOW
	7	GND
	8	RS-485 TRANSCEIVER #2 (U311) B
	9	RS-485 TRANSCEIVER #3 (U312) B
	10	N/C
	11	GND
	12	RS-485 TRANSCEIVER #1 (U310) A
	13	RS-485 TRANSCEIVER #2 (U311) B
	14	RS-485 TRANSCEIVER #4 (U313) A
	15	N/C
	
PDB J210 - DC power connection to RPB
PDB J200 - AC power input
PDB J230 - AC power output to diode driver
PDB J240 - AC power output to low-voltage power supply and chiller

LCB J200 - DC power connection to RPB (passes through sealed twist-lock connector)
	1	+24V DC
	2	GROUND
	3	+15V DC
	4	N/C
	5	+7V DC
	6	GROUND
	7	N/C
	8	GROUND

LCB J310 (DB-15) - CANBUS & RS-485 loop to DLB
	
LCB J510 - N/C
LCB J600 - Crystal heaters and thermistors
	1	CRYSTAL THERMISTOR 
	2	CRYSTAL THERMISTOR (GND)
	3	CRYSTAL THERMISTOR 
	4	CRYSTAL THERMISTOR (GND)
	5	CRYSTAL TEC1 -
	6	CRYSTAL TEC1 +
	7	CRYSTAL TEC0 -
	8	CRYSTAL TEC0 +

LCB J1000 - Safety shutter
	1	OPTO POSITION SENSOR A OUTPUT (NO)
	2	OPTO POSITION SENSOR B OUTPUT (NC)
	3	+COIL (WHITE) [24V DC]
	4	N/C
	5	-COIL (BLACK) [GND]
	6	N/C
	7	OPTO POSITION SENSOR EMITTER GND
	8	OPTO POSITION SENSOR EMITTER +5V DC
	9	NTC THERMISTOR
	10	NTC THERMISTOR

LCB J1010 - Aim beam board
	1	+5V DC
	2	ENABLE/CONTROL (HIGH/0-5V)
	3	GROUND
	4	N/C
	
LCB J1100 - Feedback photodiodes (PIN-3CDI)
	1	UPPER PHOTODIODE (BLACK) [PD CATHODE]
	2	UPPER PHOTODIODE (WHITE) [PD ANODE]
	3	UPPER PHOTODIODE (SHIELD) [PD CASE]
	4	LOWER PHOTODIODE (BLACK) [PD CATHODE]
	5	LOWER PHOTODIODE (WHITE) [PD ANODE]
	6	LOWER PHOTODIODE (SHIELD) [PD CASE]
	
LCB J1400 - N/C

FIBER INTERFACE CONNECTOR AND ID MODULE 0105-3730 [ALIGNMENT FIBER BRIDGES 5 TO 6 and 9 TO 10]
	BLACK:	TEMPERATURE TRANSDUCER (AD590KF)
	PURPLE:	TEMPERATURE TRANSDUCER (AD590KF)
	BROWN:	CONTACT #12
	ORANGE:	CONTACT#1
	GREEN:	CONTACT #2,3,6,7,10,11
	RED:	CONTACT #4
	YELLOW:	CONTACT #5
	WHITE:	CONTACT #9
	BLUE:	CONTACT #8