Optical Systems Design OSD139HS, Operator'S Manual

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OPTICAL SYSTEMS DESIGN
DOC ID: 10117202
OSD139HS OPERATOR MANUAL
Page 7 of 16
1.5 PIN ASSIGNMENTS
Table 3 and Figure 2 below identifies the pin assignments of the 25 Pin D connector on the OSD139HS.
Shielded cables are recommended for all data wiring.
TABLE 3: PIN ASSIGNMENTS FOR DTE AND DCE MODE
PIN NAME DTE FUNCTION DCE FUNCTION
Pin 1 Case ground AC coupled to signal ground
Pin 2 Transmit data Modem accepts data Modem outputs data
Pin 3 Receive data Modem outputs data Modem accepts data
Pin 4 Request to send Connected to Pin 5
Pin 5 Clear to send Connected to Pin 4
Pin 6 Data set ready Connected to Pin 20
Pin 7 Signal ground 0V ground
Pin 8
Received line
signal detect
Connected to Pin 20
Pin 9 Power
Ex6V
DC
to +12V
DC
power may be fed to the modem via this
Pin. Use Pin 7 for 0V ground.
Pin 20
Data terminal
ready
Connected to Pin 6
FIGURE 2: FEMALE D CONNECTOR PINOUT CONFIGURATION.
1
13
14 25