Ericsson LBI-39128 manual PMU Programming, Terminal Setup, Software Initialization

INSTALLATION LBI-39128

on the back of the PMU (this cable will be re-connected later in the installation).

2.Switch the On/Off switch on the back of the PMU to the “On” position.

3.Verify that the “PWR” indicator on the front panel of the PMU stays on continuously.

4.Verify that the three other indicators on the front panel of the PMU are flashing in a repeating sequence. The “MUX” indicator should flash once every 250 milliseconds; first by itself, next with the “DATA” indicator, and then with the “ALARM” indicator.

PMU PROGRAMMING

The PMU’s operational program will use the factory default values for its operational parameters unless re- configured by the user. The user-configurable parameters may be re-configured through the use of an RS232 CRT terminal (or PC with terminal emulation software) connected to the PMU.

CAUTION

Changing parameters not covered in this manual may lead to unsatisfactory operation of the PMU option.

RS232 CRT Terminal				PMU
(or PC COM Port)				Left VDT Interface
DB-25 (M)	DB-25 (F)	DB-25 (M)	DB-25 (F)
		Null Modem Cable
	1		1
Tx Data	2		2	Tx Data
Rx Data	3		3	Rx Data
RTS	4		4	RTS
CTS	5		5	CTS
DSR	6		6	DSR
Ground	7		7	Ground
DTR	20		20	DTR

Figure 13 - DB-25 Terminal Connections

RS232 CRT Terminal				PMU
(or PC COM Port)				Left VDT Interface
DB-9 (M)	DB-9 (F)	DB-25 (M)	DB-25 (F)
		Null Modem Cable
	1		1
Rx Data	2		2	Tx Data
Tx Data	3		3	Rx Data
DTR	4		4	RTS
Ground	5		5	CTS
DSR	6		6	DSR
RTS	7		7	Ground
CTS	8
	9		20	DTR

Figure 14 - DB-9 Terminal Connections

2.Turn the terminal on and set the communications protocol per Table 5.

Terminal Setup

The following initial steps are required to set up the terminal and access the PMU.

1.Connect the RS232 CRT terminal to the left-hand VDT Interface connector on the back of the PMU (see Figure 12). (DO NOT plug into the front of the PMU.) If the RS232 CRT terminal has a male DB-25 port, connect per Figure 13. If the terminal has a male DB-9 port, connect per Figure 14.

CAUTION

DO NOT plug the RS232 CRT terminal into the front panel of the PMU (damage to terminal may result). This connnector is for another device in another application.

Table 5 - Terminal Communications Protocol

PARAMETER	VALUE
Baud Rate	9600 BPS
Data Bits	8
Parity	None
Stop Bits	1

3.Press the Enter key one or more times until the “Disconnected - Hit Any Key To Connect” prompt appears on the terminal:

Software Initialization

Before you attempt to program any PMU parameters, all parameters should be returned to the factory default values. The following procedure is used to initialize the PMU with its factory defaults:

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