Motorola Astro XTL 1500 Installation Manual page 41

Options and Accessories Installation: Accessory Connector Assembly Details (P2)
Table 3-3. Rear Connector and Front Connector Naming Schemes
J2 Pin Number
J2-4 UARTA_TX
J2-5 UARTA_RX
J2-10 UARTA_CTS
J2-11 UARTA_RTS
1
As indicated for front and rear connectors
2
Pin function as a true "DCE" device according to EIA standard
Radio Pin Direction
Output
Input
Output
Input
1
EIA standard
2
The DB9 (female) serial port cable can be added to the P2 rear accessory cable
Note: TX to RX and RTS to CTS, not "same to same" (e.g., not TX to TX).
6815851H01-O
1
J2 Pin Name
Table 3-4. How to Connect to a Computer
DB9 (Female) Serial Port
2
Connector = DCE
Interface
TX_DCE = pin 2
RX_DCE = pin 3
RTS_DCE = pin 8
CTS_DCE = pin 7
Pin Alternate Name
No change
No change
Becomes RTS
Becomes CTS
1
(DTE Device)
DB9 (Male) Serial Port
Connector = DTE
Interface
pin 2 = RX_DTE
pin 3 = TX_DTE
pin 8 = CTS_DTE
pin 7 = RTS_DTE
EIA Compatible Name at
Rear Connector J2
TX_DCE
RX_DCE
RTS_DCE
CTS_DCE
Data Device Pin
Direction
Input
Output
Input
Output
(Figure 3-5).
June 3, 2005
3-11
2