Product specifications

Chapter 6. SNMP Option

May 2011

Chapter 6. SNMP Option

6.1 Installation

Installation of the SNMP optional feature should be performed by qualified service personnel

only. As with all electronic devices that are powered from an AC line, dangerous voltages may be

present inside the unit. The technician should exercise proper care and judgment. Only open the

unit for service after disconnecting the unit from the power source.

This documentation will explain in detail the proper procedure for installation of the SNMP

printed circuit board feature for the ETU01-A. This procedure may also require replacement of the

operational firmware for older versions of the ETU01-A as the older firmware does not support the

newer SNMP card functions.

6.1.1 Required tools and supplies

No.2 Philips head screwdriver

thread lock compound (such as Glyptol™)

small, flat blade screwdriver (to aid in replacing firmware IC)

6.1.2 Procedure (Please refer to the attached drawing)

Inspect the contents of the SNMP kit. It should contain one(1) SNMP card, three(3) brass

standoffs, six(6) 3mm screws, MIB file on CDROM, and possibly a 32pin EEPROM.

From the rear of the unit, disconnect all power, data port, and E1 cabling from the unit. Loosen

the two captive thumb-screws located on the lower left and right of the unit. Carefully slide the

mother PCB out of the case and place on a flat, clean work area. (Refer to Figure 6-1: Firmware

Chip Location.)

Refer to Figure 6-2, the SNMP Exploded view. Apply thread-lock to three mounting screws

and attach the three brass standoffs to the main PCB as shown. The standoffs are to be located on

the component side of the main PCB.

If the firmware needs to be upgraded, perform this step prior to insertion of the SNMP card.

Use a flat-blade screwdriver to carefully remove the EEPROM IC from PCB location U4 (refer to

Figure 6-1). Ensure that the pins of the new IC are straight, align the pins with the IC socket and

carefully seat the new IC. Excessive force should not be required. Inspect all 32 pins to ensure

proper seating and that no pins were inadvertently bent during insertion.

Install the SNMP pc board by aligning the pins of the SNMP card with the 20pin connector

and seat the card. Ensure that no pins are bent and that all pins have been received into the

connector socket on the main PCB.

Use the remaining 3mm screws to hold down the SNMP card. Do not over-tighten, just tighten

snug. Apply Glyptol™ to the hold down screws at your discretion. Refer to the exploded view

Figure 6-2.

If the system firmware has been replaced, a system reset will be required to initialize the

system properly. Return the motherboard to the case, tighten the captive thumb-screws and re-

attach all cables and power. Perform a system reset followed by re-configuration and normal loop

back diagnostics. Please refer to Chapter 3 if using the LCD or Chapter 4 for serial terminal.