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APPENDIX C
MODEL 1052/A INTERFACE PIN ASSIGNMENTS
RS-232 INTERFACE
(DB-25 Female Connector)
(DCE Orientation)
Pin #
Signal
1
Shield GND
2
TD (Transmit Data) (DTE Source)
3
RD (Receive Data) (DCE Source)
4
RTS (Request to Send) (DTE Source)
5
CTS (Clear to Send) (DCE Source)
6
DSR (Data Set Ready) (DCE Source)
7
SGND (Signal Ground)
8
CD (Carrier Detect) (DCE Source)
15
TC (Transmitter Clock) (DCE Source)
17
RC(Receiver Clock) (DCE Source)
18
LL (Local Analog Loopback)
20
DTR (Data Terminal Ready) (DTE Source)
21
RDL (Remote Digital Loopback)
24
XTC (External Transmit Clock) (DTE Source)
25
TM (TM (Test Mode) (DCE Source)