Emerson PMPPC7448 Serial Input/Output: I/O Connection, Mini-USBPin, Description:2, DB9 Pin

Serial Input/Output: I/O Connection

Table 8-2:Front Panel Serial Port Pin Assignments (P2)

Pin:	Signal:	Pin:	Signal:
		21
1	Not connected		Receive (Rx) Data Input,
31			EIA-232 (alternate is Tx)1
	Transmit (Tx) Data Output,	4	Not connected
	EIA-232 (alternate is Rx)1
5	Ground	6-9	Connector housing ground

1.Signals (pins 2 and 3) can be switched as a factory build option.

Figure 8-2:Serial Cable Assembly (Emerson Part Number C0007662-00)

Mini-B USB

DB9 Connector

Caution: The Mini-USB cable connection to P2 does not have a locking mechanism. Pulling on the

!cable may result in a disconnection.

Table 8-3:Serial Cable Wiring Assignments

Mini-USB Pin:	Description:2	DB9 Pin:
Shell	Drain wire (shield)	Shell
1	No connection	1
2	White wire (receive)	3
3	Green wire (transmit)	2
4	No connection	4
5	Black wire (signal ground)	5
	No connection	6
	No connection	7
	No connection	8
	No connection	9

2.The USB cable red wire is not used.

10006757-02 PmPPC7448 User’s Manual

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