Datasheet
-17
HDM EIA/TIA-232C (V.24) Port Pin Assignments
Table C-27 contains a listing of IGX EIA/TIA-232C port pin assignments for the SDI data card. A
standard EIA/TIA-232 (V.24) cable is used for this application.
Table C-27 HDM EIA/TIA-232C Port Pin Assignments
Pin No. IGX Name EIA Name Source Description
1 Frame Gnd. AA Both Frame Ground
2 TxD BA DTE Transmit Data from DTE
3 RxD BB DCE Received Data to DTE
4 RTS CA DTE Request to Send
5 CTS CB DCE Clear to Send
6 DSR CC DCE Data Set Ready
7 Signal Ground
8 DCD CF DCE Data Carrier Detect (RLSD)
9 +VS Both +12 volt test
10 -VS Both –12 volt test
11 QM Pin 11 DCE
DTE
Equalizer Mode (to DTE)
Pin 11 to (DCE)
12 SDCD SCF DCE Secondary Data Carrier Detect
13 SCTS SCB DCE Secondary Clear to Send
14 STxD SBA DTE Secondary Transmit Data
15 TxC DB DCE Transmitter Clock
16 SRxD SBB DCE Secondary Received Data
17 RxC DD DCE Receiver Clock
18 DCR DCE Divided Receiver Clock
19 SRTS SCA DTE Secondary Request to Send
20 DTR CD DTE Data Terminal Ready
21 SQ CG DCE Signal Quality Detect
22 RI CE DCE Ring Indicator
23 SFCI CH
CI
DTE
DCE
Signal Rate Select (to DCE)
Signaling Rate Indicator (to DTE)
24 XTC DA DTE External Transmitter Clock
25 BSY DTE Busy (in service)