Tally T2033, Руководство по обслуживанию

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The combined interface is equipped with a 25 pin DB25S connector.
Connector Transmiss. Printer
No. Signal Type passive active
1 CHASSIS GROUND V.24 / TTY
2 TxD V.24
3 RxD V.24
7 SIGNAL GROUND (GND) V.24 / TTY
9 Receive Loop TTY –R-Loop +R-Loop
10 Receive Loop TTY +R-Loop –R-Loop
18 Transmission Loop TTY –T-Loop +T-Loop
21 Transmission Loop TTY +T-Loop –T-Loop
25 RDY (READY/BUSY) V.24
Jumper Function
B5 open *
B5 closed no connection GND and chassis
GND and chassis connected
B17 closed /
B18 open* 4 MB PROM (Firmware)
B20 open / B21 closed *
B22 open / B23 closed PROM pedestal empty or additional 2 MB PROM installed (optional fonts)
B20 closed / B21 open
B22 open / B23 closed PROM pedestal with additional 4 MB PROM installed (optional fonts)
B20 open / B21 closed
B22 closed / B23 open PROM pedestal with additional RAM installed
Slide switches Function
S1 in position 1 * T-Loop passive
S2 in position 1 * R-Loop passive
S1 in position 2 T-Loop active
S2 in position 2 R-Loop active
1
13
25 14
Spare parts and drawings
7-38