NEC NEAX 2000 IPS - Page 290

– 274 – NWA-008841-001 Rev.5.0
90ch2002.fm
RS-232C Connector Layout
PIN
NO.
SIGNAL-NAME
SIGNAL
DIRECTION
MEANING
RS-232C JIS C6361
ITU-T
V.24
ANOTHER
1 AA (FG) 101 GND Frame Ground
2 BA SD 103 TXD DTE Send Data
3 BB RD 104 RXD DCE Receive Data
4 CA RS 105 RTS DTE Request to Send
5 CB CS 106 CTS DCE Clear to Send
6 CC DR 107 DSR DCE Data Set Ready
7 AB SG 102 GND Signal Ground
8 CF CD 109 DCD DCE Data Channel Receive Carrier
Detect
9 Not Used
10 Not Used
11 PB Peripheral Busy
12 SCF BCD 122 DCE Backward Channel Receive Carrier
Detect
13 SCB BCS 121 DCE Backward Channel Send (OK)
14 SBA BSD 118 DTE Backward Channel Send Data
15 DB ST2 114 TXC (2) DCE Send Signal Element Timing
16 SBB BRD 119 DCE Backward Channel Receive Data
17 DD RT 115 RXC DCE Receive Signal Element Timing
18 Not Used
19 SCA BRS 120 DTE Backward Channel Send Detect
20 CD ER 108/2 DTR DTE Data Terminal Ready
21 CG SQD 110 DCE Data Signal Quality Detect
22 CE CI 125 RI DCE Call Indication
23 CI, CH SRS 112, 111 – Data Signal Speed Choice
24 DA ST1 113 TXC (1) DCE Send Signal Element Timing
25 Not Used
SMDR/PMS/MCI/CIS Printer/Hotel Printer (AP00)