[plambeck.rcvr]cables.txt
receiver cabling		
last update: 11 Sep 03 

NOTES:
 (1) receiver-related cables are labeled sequentially from 200
 (2) M=male, F=female connectors on CABLE
 (3) for each signal, pin numbers are listed in this order:
	 (+V, -V or gnd, shield)


200:  VME bus << Elco 38 M - Elco 38 F << LO plate AD
	(8 shielded twisted pairs)

A,E,F		motor driver, mmosc A 		60/ A23, A24, B24
B,C,H   	motor driver, mmbck A		60/ A25, A26, B26
D,J,K  		motor driver, atten A		60/ A27, A28, B28
L,M,S		modulator A			60/ A02, A03, B03
BB,FF,HH	--
JJ,KK,PP	--
LL,RR,SS	--
MM,NN,TT	motor driver, atten D		60/ A29, A30, B30


201:  VME bus << Elco 38 M - Elco 38 F << LO plate BC 
	(8 shielded twisted pairs)

A,E,F		motor driver, mmosc B		50/ A23, A24, B24
B,C,H   	motor driver, mmbck B		50/ A25, A26, B26
D,J,K  		motor driver, atten B		50/ A27, A28, B28
L,M,S		modulator B			50/ A02, A03, B03
BB,FF,HH	modulator C			--
JJ,KK,PP	motor driver, mmosc C		50/ C25, C26, B25
LL,RR,SS	motor driver, mmbck C		50/ C27, C28, B27
MM,NN,TT	motor driver, atten C		50/ A29, A30, B30


202:  LO plate AD >> D25F - D25M >> a/d mux II

1,14		Vref from a/d to LO plate		
2,15		mmosc A motor position (0-Vref)
3,16		mmbck A motor position (0-Vref)
4,17		atten A motor position (0-Vref)
5,18		spare 1
6,19		spare 2
7,20		atten D motor position (0-Vref)
8,21		T_AD thermistor
9,22		Vop A (0-11 V)
10,23		tripler bias voltage (0-4 V)
11,24		--
12,25		--
13		--


203:  LO plate BC >> D25F - D25M >> a/d mux II 

1,14		Vref from a/d to LO plate
2,15		mmosc B motor position (0-Vref)
3,16		mmbck B motor position (0-Vref)
4,17		atten B motor position (0-Vref)
5,18		mmosc C motor position (0-Vref) (or mxrbck B)
6,19		mmbck C motor position (0-Vref) (admax mon)
7,20		atten C motor position (0-Vref)
8,21		T_BC thermistor
9,22		Vop B (0-11 V)
10,23		Vop C (0-11 V)
11,24		--
12,25		--
13		--
		(* currently used as Vref monitor)


204:  rcvr control << D37M - D37F << dewar

1,20,2,21	SIS mixer A
3,22,4,23	SIS mixer B
5,24,6,25	SIS mixer C
7,26,8,27	SIS mixer D
9,28		sensor 1
10,29		sensor 2
11,30		sensor 3
12,31		sensor 4
13,32		sensor 5
14,33		heater (2nd stage) [was sensor 6]
15,34		heater (3rd stage)
16,35		GND
17		HEMT A +5
36		HEMT B +5
18		HEMT C +5
37		HEMT D +5
19		HEMT A,B,C,D -5


205:  rcvr control << D25M - D25M >> a/d mux III
	(note: labels on current a/d mux have been superseded)

1,14		Imxr A (0-4 V)
2,15		Vmxr A (0-4 V)
3,16		Iheater3 
4,17		sensor 5 (0-4 V)
5,18		sensor 6 (0-4 V)
6,19		VSchottky (0-4 V)
7,20		Iheater2 [was unused 1]
8,21		unused 2
9,22		sensor 1 (0-4 V)
10,23		sensor 2 (0-4 V)
11,24		sensor 3 (0-4 V)
12,25		sensor 4 (0-4 V)
13		--


206:  VME << D25M - D25M >> rcvr control

1,14		Vmxr 				50/ C01, B01
2,15		heater3 control			50/ C02, B02
3,16		band select A0			50/ A07, B07
4,17		band select A1			50/ A08, B08
5,18		open/closed loop		50/ A09, B09
6,19		YIG tune			50/ C03, B03
7,20		x lock status			50/ C10, B10
8,21		L lock status			50/ C11, B11
9,22		heater2 control			60/ C03, B03
10,23		open/close loop			50/ A11, B11	
11,24		--
25		--


207:  VME bus << D37M - D37M >> IF plate

1,20		band select 0 (=TTL1) 		60/ A07, B07
2,21		band select 1 (=TTL2)		60/ A08, B08
3,22		phslck select 0 (TTL)		60/ A09, B09
4,23		phslck select 1 (TTL)		60/ A10, B10
5,24		2nd IF 10 dB atten, TTL		60/ A11, B11
6,25		2nd IF on/off, TTL		60/ A12, B12	
7,26		mmosc on/off, TTL		60/ A13, B13
8,27		mm phslck sweep on/off, TTL	60/ A14, B14
9,28		mm phslck lock status, TTL	60/ C17, B17
10,29		mm phslck ref status, TTL	60/ C18, B18
11,30		mm phslck loop gain (0-10 V)	60/ C01, B01
12,31		mm phslck Vop (0-10 V)		60/ C02, B02
13,32		line length ref OK, TTL		60/ C19, B19
14,33		echo level (0-10 V out)		60/ A04, B04
15,34		echo balance A (0-10 V out)	60/ A05, B05	
16,35		echo balance B (0-10 V out)	60/ A06, B06
17,36		--
37		--

208:  VME bus << Elco 20 M - Elco 20 F << IF plate
	(6 shielded twisted pairs)

A,B,E		LO1 offset freq I		
C,D,J		LO1 offset freq Q
F,K,M		LO2 offset freq I
L,R,P   	LO2 offset freq Q
S,T,W		echo offset freq I
U,V,X   	echo offset freq Q


209:  IF plate << D15 M - D15 M >> rcvr control

1,9	YIG tune (to YIG osc)
2,10	rcvr total pwr (to test points and a/d mux)
3,11	mm phaselock IF level (to analog meter and a/d mux)
4,12	mm phaselock err V (to analog meter and a/d mux)
5,13	mm lock LED (to LED)
6,14	--
7,15	--
8	--


210:  IF plate << D25 M - D25 M >> a/d mux II

1,14	T_plate 	therm
2,15	T_2nd_IF 	therm
3,16	T_harm_gen 	therm
4,17	T_bp/bs 	therm
5,18	Xband tune mon 	0-10 V
6,19	plate htr mon 	0-10 V
7,20	mm lp gain mon	0-10 V
8,21	echo level mon	0-10 V
9,22	+15 mon		0 to 15 V
10,23	-15 mon		0 to -15 V
11,24	+5 mon		0 to 5 V
12,25	--
13	--


211:  pwr supply << Elco 38 M - Elco 38 F << IF plate 

A,B	htr control thermistor
E,F	+15 V supply
M,H	-15 V supply
J,K	+5 V supply
RR,LL	+36 V supply
C,D	+5 V sense leads
L,R	+15 V sense leads
P,N	-15 V sense leads
S	+15 V from IF plate to htr control board
V	-15 V from IF plate to htr control board
W	shield to gnd
PP	+36 V from IF plate to htr control board
KK	GND from IF plate to htr control board
NN+TT 	+36 V to IF plate htr
MM+SS 	return from IF plate htr (switched to gnd by Darlington)
T,U	htr pwr mon (from htr control board to a/d mux)


212:  rcvr control << D15 M - D15 M >> a/d mux II

1,9	Lband err V	0-10 V
2,10	Lband IF lev	0-10 V
3,11	xband err V	0-10 V
4,12	xband IF lev	0-10 V
5,13	mm err V	0-10 V
6,14	mm IF lev	0-10 V
7,15	totpwr		0-5 V 
8	--


213:  X synch << D9 M - D9 M >> rcvr control

8,7	YIG tune (0-10 V tuning voltage from synch)  (pin 8 is positive)


214:  X synch "ext mon" >> D9 F - D9 M >> rcvr control

1,6	xband err V (-10 to 10 V from synch)
2,7	YIG tune (0-10 V from d/a to synch) (pin 2 is positive)
3,8	xband lock status (TTL from synch)
4,9	xband IF level (0-13 V from synch)
5	--

# old 214:  X synch "ext mon" << DIN - DIN >> rcvr control
#
#  2,4	xband err V (0-10 V from synch)
#  8,7	xband IF lev (0-10 V from synch)
#  1,6	YIG tune (0-10 V from d/a to synch) (pin 1 is positive)
#  5,3	xband lock status (TTL from synch) ]


215:  L synch "ext mon" << DIN - DIN >> rcvr control

2,4	Lband err V  	(0-10 V from synch)
8,7	Lband IF lev	(0-10 V from synch)
5,3	Lband lock stat	(TTL from synch)
6,1	--


217:  VME bus << D9 M - D9 M >> a/d mux III

1,6	mod A Imon	-x to x			60/ A01, B01
2,7	mod B Imon	-x to x			50/ A01, B01
3,8	mod C Imon	-x to x			--
4,9	T_VME		therm			to thermistor on chassis
5	--


218:  VME bus << Elco 20 M - Elco 20 F << cal/pol
	(2 shielded twisted pairs)

A,B,E	motor driver, cal load  		60/ C25, C26, B25
C,D,J	motor driver, pol plate assembly 	60/ C31, C32, B31


220:  cal/pol << D15 M - D15 M >> a/d mux III
 
1,9	Vref from a/d mux to cal/pol
2,10	calib motor position (0-Vref)
3,11	pol motor position (0-Vref)
4,12	T_amb thermistor
5,13	T_hot thermistor
6,14	--
15	--


221:  He compressor << Amphenol 14-pin  - D9 M >> a/d mux II

1,6	T inlet air thermistor
2,7	T gas disch thermistor
3,8	T heat exch thermistor
4,9	T sump thermistor
5	--


222:  He manifold >> D9 F - D9 M >> a/d mux II

1,6	+15,GND to pressure transducers
2,7	He supply pressure transducer (0-11 V)
3,8	He return pressure transducer (0-11 V)
4,9	vac gauge (0-10 V in from BNC connector)
5	--


223:  therm fanout 1 << D25 M - D25 M >> a/d mux III

1,14	T1 thermistor
2,15	T2 thermistor
3,16	T3 thermistor
4,17	T4 thermistor
5,18	T5 thermistor
6,19	T6 thermistor
7,20	T7 thermistor
8,21	T8 thermistor
9,22	T9 thermistor
10,23	T10 thermistor
11,24	T11 thermistor
12,25	T12 thermistor
13	--


224:  therm fanout 1 << D25 M - D25 M >> a/d mux III

1,14	T13 thermistor
2,15	T14 thermistor
3,16	T15 thermistor
4,17	T16 thermistor
5,18	T17 thermistor
6,19	T18 thermistor
7,20	T19 thermistor
8,21	T20 thermistor
9,22	T21 thermistor
10,23	T22 thermistor
11,24	T23 thermistor
12,25	T24 thermistor
13	--


225:  tiltmeter 1 >> ? - D9 M >> a/d mux III

1,6,2	+15,GND,-15 to tiltmeter
3,7	tilt 1	(-5 to 5 V)
4,8	--
5,9	--


226:  tiltmeter 2 >> ? - D9 M >> a/d mux III

1,6,2	+15,GND,-15 to tiltmeter
3,7	tilt 2	(-5 to 5 V)
4,8	--
5,9	--


227:  water flowmeter >> ? - D9M >> a/d mux II

1,6	+15,GND	to flowmeter
2,7	flowrate (0-4 V)
3,8	T water in thermistor
4,9	T water out thermistor
5	--


228:  a/d mux II << D37 M - D37 M >> VME
229:  a/d mux II << D37 M - D37 M >> VME
	(control signals from analog card to a/d mux;
	 multiplexed inputs to analog card)


230:  a/d mux III << D37 M - D37 M >> VME
231:  a/d mux III << D37 M - D37 M >> VME
	(control signals from analog card to a/d mux;
	 multiplexed inputs to analog card)


232:  VME << Elco 20 M - Elco 20 F << subreflector

A,B	subreflector tuning motor		50/ C31, C32, B32
						(also 50/A31 to +28 V)


233:  rcvr mon << D25 M - D25 M >> VME

1,14	totpwr
2,15	sensor 4
3,16	sensor 2
4,17	Iheater 3
5,18	Iheater 2
6,19	--
7,20	--
8,21	--
9,22	--
10,23	--
11,24	--
12,25	--
13	--


234:  cm synch "ext mon" >> D9 F - D9 M >> a/d mux III "extra"
	  (used to monitor extra xband synch used with Carlstrom rcvrs)

1,6	cm band err V (-10 to +10 V from synch)
2,7	--
3,8	cm lock status (TTL from synch)
4,9	cm IF level (0-13 V from synch)
5	--


235:  JC buffer, VME slot 8 << D15 M - 18-pin Bendix >> JC rcvr
	  (12-bit control signal to tune 26-40 GHz YIG)


xxx:  telem >> D9 - D9 >> 2nd IF atten control

1	GND			60 / B18
2	NC
3	NC
4	6 dB			60 / A19
5	3 dB			60 / A17
6	4 dB			60 / A18
7	1 dB			60 / A15
8	2 dB			60 / A16
9	10 dB			60 / A20

----------------------------------------------------------------------------------
summary of changes, June 94

1. 2nd stage heater added to rcvr mon
2. additional cable from rcvr mon to VME, signals to v/f
3. xband synchr switched from DIN to 9-pin D