KE LOGEM LGH 28.8D1, Operation Manual, Page: 180 / 200

180 Operation Manual V.34 - Modems, Version 07/97
Chapter 8
Appendix C1
Data Interface LGM 28.8D1
DIN ITU-T int. name description pin
E2 102 GND ground 16c
D1 103 TXD transmit data 11c
D2 104 RXD receive data 12c
S2 105 RTS ready to send 13c
M2 106 CTS clear to send 14c
M1 107 DSR data set ready 15c
S1 108 DTR data terminal ready = S1.1 or
DTE operational = S1.2
16a
M5 109 DCD data carrier detect 18c
M3 125 RI incoming call 19a
PM1 142 TM test status 22a
T2 114 TXC transmit clock from DCE 11a
T4 115 RXC receive clock from DCE 13a
T1 113 TXC transmit clock from DTE 24a
S4 111 activate high transmission
rate (DTE)
20a
M4 112 high transmission rate ON (DCE) 22c
PS2 140 RL remote test loop 18a
PS3 141 LL local test loop 14a
Voltage levels at the V.24 interface:
TTL (latch up protected HCMOS technology with integrated pull up
resistors acc. to CEPT T/CD 1-14)
c
b
a
1 32
Appendix