Section 3 Controls and Indicators
3 - 12
May 1992
MX-5050 Operation and Maintenance Manual
3.7 Connector Pin Assignment
Table 3-1
Parallel I/O Pin Assignment
No. Signal Name Signal Level IN/OUT Function
1 RECORD SW LOW IN RECORD Switch
2 PLAY SW LOW IN PLAY Switch
3 STOP SW LOW IN STOP Switch
4 F.FWD SW LOW IN F.FWD Switch
5 REWIND SW LOW IN RWD Switch
6 LIFTER DEFEAT LOW IN Lifter Defeat Switch
9 SAFETY SW SHUT OFF LOW OUT Safety Switch
10 RECORD TALLY LOW OUT Record Tally
11 PLAY TALLY OUT Play Tally
12 STOP TALLY LOW OUT Stop Tally
13 F.FWD TALLY LOW OUT F.FWD Tally
14 REWIND TALLY LOW OUT RWD Tally
16 SIGNAL GROUND LOW Signal GND
17
1
TACHO PULSE OUT Tacho Pulse Output
18 FWD/REV LOW/HI OUT Tape Direction
19 9.6kHz (FIX) OUT 9.6 kHz Output
20
2
CAP.CLOCK IN Ext Speed CNT Input
21
3
SPEED A LOW/HI OUT
22
3
SPEED B LOW/HI OUT
23 PITCH ENABLE LOW IN EXT. Speed CNT Command
24 PITCH TALLY LOW OUT EXT CNT Tally
25 REC. READY LOW OUT REC READY Tally
31 SENSOR TALLY LOW OUT Proximity Sensor
32 REHEARSE LOW IN REC Rehearsal Command
33 5V ± 10% 5V (max 150 mA)
34 AUX. POWER Unreg. Power Output
35 AUX. POWER (24V ~ 40V Max. 500mA)
36 POWER GND Power GND
37 POWER GND Power GND
1
Tacho pulse
Tacho Pulse Rate
15 ips 120 pulse/sec
7.5 ips 60 pulse/sec
3.75 ips 30 pulse/sec
Tacho Pulse Width
Minimum 100µsec
2
CAP. CLOCK
Capstan Ext. Speed Control Input Clock
Rated Tape Speed: 9.6kHz
Allowable Frequency Range: 4.8 to 19.2kHz
Duty Cycle: 40 to 60 %
3
SPEED A, SPEED B
TAPE SPEED SPEED A SPEED B
15 ips High Low
7.5 ips Low High
NR Remote Connector (MKIV-8 Option)
Table 3-2
Connector Pin 21,22
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