I/O-62 connector panel pin properties

The following tables show the pin assignments to the connectors. The tables show the basic electrical properties of each pin and an example signal assignment (if any) can be made in the softplane.conf file.

J1 AZ INPUT
Pin Electrical specification Example signal name
1 TTL sPedAZ[0]
2 TTL sPedAZ[1]
3 TTL sPedAZ[2]
4 TTL sPedAZ[3]
5 TTL sPedAZ[4]
6 TTL sPedAZ[5]
7 TTL sPedAZ[6]
8 TTL sPedAZ[7]
9 TTL sPedAZ[8]
10 TTL sPedAZ[9]
11 TTL sPedAZ[10]
12 TTL sPedAZ[11]
13 TTL sPedAZ[12]
14 TTL sPedAZ[13]
15 TTL sPedAZ[14]
16 TTL sPedAZ[15]
17 TTL
18 TTL
19 TTL
20 TTL
21 GND
22 GND
23 GND
24 GND
25 GND
J2 AZ OUTPUT
Pin Electrical Specification Example Signal Name
1 TTL cEarthAZ[0]
2 TTL cEarthAZ[1]
3 TTL cEarthAZ[2]
4 TTL cEarthAZ[3]
5 TTL cEarthAZ[4]
6 TTL cEarthAZ[5]
7 TTL cEarthAZ[6]
8 TTL cEarthAZ[7]
9 TTL cEarthAZ[8]
10 TTL cEarthAZ[9]
11 TTL cEarthAZ[10]
12 TTL cEarthAZ[11]
13 TTL cEarthAZ[12]
14 TTL cEarthAZ[13]
15 TTL cEarthAZ[14]
16 TTL cEarthAZ[15]
17 TTL
18 TTL
19 TTL
20 TTL
21 GND
22 GND
23 GND
24 GND
25 GND
J3 CONTROL
Pin Electrical Specification Example Signal Name
1 Configurable I/O-62 Digital Lines: cPWidth[0]
2 cRadiateOn
3 cServoPwr
4 cReset
5 sPWidth[0]
6 sRadiate
7 sServoPwr
8 sReset
9 RS422+
10 RS422+
11 GND
12 GND
13 GND
14 Configurable I/O-62 Digital Lines: cPWidth[1]
15 cRadiateOff
16 cTransmitPwr
17
18 sPWidth[1]
19 sTransmitPwr
20
21
22 RS422-
23 RS422-
24 GND
25 GND

I/O-62 lines can be configured in softplane.conf for the following options:

  • RS-422 differential (...lRS422 = 1 in softplane.conf) or TTL/CMOS singe-ended (...lRS422 = 0).
  • Input sense (variable starting with s in softplane.conf) or output sense (variable starting with c).
  • Input termination for the single-ended lines can be pull-up (...term=1 in softplane.conf), pull-down (...term=-1) or un-terminated (...term=0).

Always apply the same configuration for a group of pins. There are 2 groups in J3. The first group consists of pins 1-4 and 14-17. The second group consists of pins 5-8 and 18-21.

In RS-422, pins 1-8 are the positive and pins 14-21 the negative wires of the differential pairs.

J4 EL INPUT
Pin Electrical Specification Example Signal Name
1 TTL sPedEL[0]
2 TTL sPedEL[1]
3 TTL sPedEL[2]
4 TTL sPedEL[3]
5 TTL sPedEL[4]
6 TTL sPedEL[5]
7 TTL sPedEL[6]
8 TTL sPedEL[7]
9 TTL sPedEL[8]
10 TTL sPedEL[9]
11 TTL sPedEL[10]
12 TTL sPedEL[11]
13 TTL sPedEL[12]
14 TTL sPedEL[13]
15 TTL sPedEL[14]
16 TTL sPedEL[15]
17 TTL
18 TTL
19 TTL
20 TTL
21 GND
22 GND
23 GND
24 GND
25 GND
J5 EL OUTPUT
Pin Electrical Specification Example Signal Name
1 TTL cEarthEL[0]
2 TTL cEarthEL[1]
3 TTL cEarthEL[2]
4 TTL cEarthEL[3]
5 TTL cEarthEL[4]
6 TTL cEarthEL[5]
7 TTL cEarthEL[6]
8 TTL cEarthEL[7]
9 TTL cEarthEL[8]
10 TTL cEarthEL[9]
11 TTL cEarthEL[10]
12 TTL cEarthEL[11]
13 TTL cEarthEL[12]
14 TTL cEarthEL[13]
15 TTL cEarthEL[14]
16 TTL cEarthEL[15]
17 TTL
18 TTL
19 TTL
20 TTL
21 GND
22 GND
23 GND
24 GND
25 GND
J6 RELAY
Pin Electrical Specification Example Signal Name
1 Relay K1: CT cPWidth[0]
2 Relay K1: NO
3 Relay K1: NC
4 Relay K2: CT cPWidth[1]
5 Relay K2: NO
6 Relay K2: NC
7 Relay K3: CT
8 Relay K3: NO
9 Relay K3: NC
10 -
11 GND
12 GND
13 GND
14 +12 VDC

External

Relay

Control

Power
15 +12 VDC
16 +12 VDC
17 +12 VDC
18 +12 V Unreg
19 +12 V Return14

External

Control

Returns
20 +12 V Return15
21 +12 V Return16
22 +12 V Return17
23 -
24 GND
25 GND
warningWARNING To avoid possible damage to the connector panel, all external relays must be equipped with diode protection against the back EMF generated when the external relay coil is opened. Relays can be purchased with a diode installed or a diode can be added to the relay across the coil supply and return.
Dry Contacts Used as Internal relays K1, K2, K3 on the Connector Panel
Contact Description
CT Center contact
NO Normally open contact
NC Normally closed contact
J7 19:0
Pin Electrical Specification Example Signal Name
1 TTL sAux[0]
2 TTL sAux[1]
3 TTL sAux[2]
4 TTL sAux[3]
5 TTL sAux[4]
6 TTL sAux[5]
7 TTL sAux[6]
8 TTL sAux[7]
9 TTL sAux[8]
10 TTL sAux[9]
11 TTL sAux[10]
12 TTL sAux[11]
13 TTL sAux[12]
14 TTL sAux[13]
15 TTL sAux[14]
16 TTL sAux[15]
17 TTL sAux[16]
18 TTL sAux[17]
19 TTL sAux[18]
20 TTL sAux[19]
21 GND
22 GND
23 GND
24 GND
25 GND
J8 ANALOG IN
Pin Electrical Specification Example Signal Name
1 ±20 VDC Differential Analog Inputs, Positive side Amux0+
2 Amux1+
3 Amux2+
4 Amux3+
5 Amux4+
6 Amux5+
7 Amux6+
8 Amux7+
9 Amux8+
10 Amux9+
11 GND
12 GND
13 GND
14 ±20 VDC Differential Analog Inputs, Negative side Amux0-
15 Amux1-
16 Amux2-
17 Amux3-
18 Amux4-
19 Amux5-
20 Amux6-
21 Amux7-
22 Amux8-
23 Amux9-
24 GND
25 GND
J9 RVP: MISC I/O ; RCP8: PED/STATUS
Pin Electrical Specification Example Signal Name
1 Configurable I/O-62 Digital Lines: sWavegpFlt
2 sInterlockFlt
3 sLocal
4 sLowerEL
5
6
7
8 ±6 to ±70 VDC Input AzTach+
9 ±6 to ±70 VDC Input ElTach+
10 ±10 VDC Output AzDrive
11 GND
12 GND
13 GND
14 Configurable I/O-62 Digital Lines: sAirflowFlt
15 sMagCurrentFlt
16 sStandby
17 sUpperEL
18
19
20
21 ±6 to ±70 VDC Input AzTach-
22 ±6 to ±70 VDC Input ElTach-
23 ±10 VDC Output ElDrive
24 GND
25 GND

I/O-62 lines can be configured in softplane.conf for the following options:

  • RS-422 differential (...lRS422 = 1 in softplane.conf) or TTL/CMOS singe-ended (...lRS422 = 0).
  • Input sense (variable starting with s in softplane.conf) or output sense (variable starting with c).
  • Input termination for the single-ended lines can be pull-up (...term=1 in softplane.conf), pull-down (...term=-1) or un-terminated (...term=0).

Always apply the same configuration for a group of pins. There are 2 groups in J9. The first group consists of pins 1-4 and 14-17. The second group consists of pins 5-7 and 18-20.

In RS-422, pins 1-7 are the positive and pins 14-20 the negative wires of the differential pairs.

J10 SERIAL
Pin Electrical Specification Comment
1 GND
2 RS232C Rx
3 RS232C Tx
4 -
5 GND
6 -
7 -
8 -
9 -
J11 SERIAL
Pin Electrical Specification Comment
1 GND
2 RS232C Rx Channel 0
3 RS232C Tx Channel 0
4 RS232C Rx Channel 1
5 GND
6 RS232C Tx Channel 1
7 -12 VDC @ 50mA max regulated Regulated power supply
8 +12 VDC @ 50 mA max Regulated power supply
9 +5 VDC @ 50 mA max Regulated power supply
J12 S-D
Pin Electrical Specification Example Signal Name
1 Nominal 90 V 60 Hz Synchro Signals RefEL+
2RefEL- RefEL-
3SyEL1 SyEL1
4SyEL2 SyEL2
5SyEL3 SyEL3
6 GND
7 Nominal 90 V 60 Hz Synchro Signals RefAZ+
8RefAZ- RefAZ-
9SyAZ1 SyAZ1
10SyAZ2 SyAZ2
11SyAZ3 SyAZ3
12 GND

The pin numbers are embossed on the J12 plastic connector. Facing the back panel connector the pin arrangement is:

1 RefEL+         4 SynEL2         7 RefAZ+         10 SynAZ2
2 RefEL-         5 SynEL3         8 RefAZ-         11 SynAZ3
3 SynEL1         6 Ground         9 SynAZ1         12 Ground

The mating plug is AMP 350735-1 using Amplatch pins 350547-1. The corresponding hood comes in 2 identical pieces: AMP 640717-1, along with #6 x 1/2" self-tapping screw. You must use 2 hoods and 2 screws per plug.

The following table lists the maximum RMS voltage that can be applied to the back panel’s Molex SYNCHRO connector for each value of plug-in SIP resistor. The AZ channel voltages are set by SIP S1 and S2 sets the EL voltage levels. These resistors are socketed, you can change them by removing the back cover of the IO62-CP panel

Maximum RMS Voltage
S1 or S2 Max Ref(RMS) Max S-S(RMS)
47K 56V 31V
68K 81V 45V
100K 118V 66V
150K 178V 99V
220K 261V 145V

Note that the Ref inputs have a lower gain than the S inputs. This is because the precision of the S/D angle conversion is affected primarily by the precision at which the three S voltages can be measured. The back panel biases the gains so that the S voltages can be made as large as possible. That is, without the Ref voltages first filling the A/D conversion range.

The appropriate resistor is the smallest value such that the maximum S-to-S voltage of the synchro (which is angle dependent) still fits within the table range. The reference voltage should then fit easily into its corresponding maximum range. Don’t worry if it doesn’t; the important thing is to match the S line voltages.

For example, a traditional 90 Vrms 1:1 synchro would best use the 150 K resistor, whereas a 105 Vrms unit would require the 220 K value.

tip To check for proper A/D conversion levels of the synchro inputs, type: RCP > help view
RCP8 BNC Connector Pin Assignments
Ref Designator Label Electrical Specification Signal Name
J13 TP1 5 V 75 Ω
J14 SPARE
J15 SPARE
J16 TP2 5 V 75 Ω
J17 SPARE
J18 SPARE