PortMaster Communications Server Hardware Installation Guide
Author: spider

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# Installing Optional Equipment 3

This chapter provides information on installing the following optional upgrades:

- Installing external modems

- Adding memory

- Installing PortMaster expansion boards

- Removing PortMaster expansion boards

## Installing External Modems

Follow these instructions to install external modems.

### Required Equipment

- A standard male-to-male straight-through RS-232 cable (See "Male-to-Male Straight-Through RS-232 Cable" on page B-3 for pinout information.)

  This cable is available from most computer equipment suppliers.

- For the PM-25, a 4-foot (120cm) cable that splits into eight DB-25 straight-through cables

- For attaching the PM-25 model to a U.S. Robotics Quad modem rack, a 3-foot (90cm) cable that splits into two 50-pin high-density connectors

- External modems

  Note ¯ External modems can be connected to any asynchronous port. If a modem is connected to the C0 or S0 port, set DIP switch 1 down and turn the power off and on.

### Procedure

- Asynchronous port. Attach one end of the cable to any asynchronous port and the other end to an external modem. Repeat for each modem (PM-2R shown).

- High-density 68-pin connectors. Attach one end of the cable to a 68-pin
  high-density connector, and attach the other eight ends to external modems. Repeat for each connector.

  Use a 3-foot (90cm) cable that splits into two 50-pin high-density connectors to connect to a U.S. Robotics Quad modem rack.

For modem configuration information, refer to one of the following:

- If you are using the command line interface to configure the PortMaster, refer to the Configuration Guide for PortMaster Products.

- If you are using PMConsole to configure the PortMaster, refer to the PMconsole for Windows Administrator's Guide.

## Adding Memory

Follow these instructions to add memory.

The PortMaster is shipped from the factory with four 30-pin, 1MB (1x30), 70-nanosecond-or-better single inline memory modules (SIMMs) of RAM installed. The memory can be increased to 8MB (2x30) or 16MB (4x30).

### Required Equipment

- Four 30-pin single inline memory modules (SIMMs) rated at 70 nanoseconds or better.

### Procedure

Caution ¯ Wear a grounding strap when handling the internal components of the PortMaster.

1. Turn the power switch off and disconnect the PortMaster from the power source.

2. Lay the PortMaster down on a hard, flat, static free surface.
     Ensure that the LEDs and ports are facing you.

3. Using a Phillips screwdriver, remove the screw from the top center of the PortMaster.

4. Remove the lid.
     With both hands on the sides of the PortMaster, push the lid firmly until it slides approximately 3 inches back. Lift the lid up and remove it.

5. Locate the existing SIMM boards.
     The SIMM boards are located in the upper right corner of the motherboard approximately 3.5 inches to the right of the CPU.

6. Remove the existing SIMM boards.
     Place your finger on the top center of the SIMM closest to the CPU and gently push it in the direction of the CPU until the SIMM is free from its socket. Repeat with each SIMM board until all four SIMM boards are removed.

7. Insert the new SIMM boards.
     Starting with the socket farthest from the CPU, slide a new SIMM board, gold side down, into the socket at a 45-degree angle. Once the SIMM board is seated, place your finger on the top center of the SIMM board and gently push it away from the CPU until it clicks into place. Repeat with each SIMM board until all four SIMM boards are inserted.

8. Replace the lid.
     Slide the lid over the outside edges of the PortMaster, and slide it towards you until it clicks into place.

9. Using a Phillips screwdriver, replace the screw in the top center of the PortMaster.

10. Connect the PortMaster to the power source and turn the power switch on.

    ## Installing PortMaster Expansion Boards

    Follow these instructions to install PortMaster expansion boards on the PM-2E,
    PM-2ER, PM-2Ei-10I-U, and PM-2Ei-10I-ST.

    ### Required Equipment

    - PortMaster expansion boards (See "PortMaster Communications Server Product Line" on page 1-1 for expansion board compatibility and model information.)

    - Number 1 Phillips screwdriver

    ### Procedure

    Caution ¯ Wear a grounding strap when handling the internal components of the PortMaster.

11. Turn the power switch off and disconnect the PortMaster from the power source.

12. Lay the PortMaster down on a hard, flat, static free surface.
      Ensure that the LEDs are facing you.

13. Using a Phillips screwdriver, remove the screw from the top center of the PortMaster.

14. Remove the lid.
      With both hands on the sides of the PortMaster, push the lid firmly until it slides approximately 3 inches back. Lift the lid up and remove it.

15. Ensure that a 60-pin ribbon has been installed in the center of the PortMaster motherboard.

    - If the ribbon is installed, proceed to Step 6.

    - If the ribbon is not installed, insert the connector with the white strip on top into the main board. Ensure that the red line is closest to the power supply chamber.
16. If you are installing the MOD-101-U board, verify the board's revision number.
      The PortMaster 2ER requires revision C or later of the MOD-101-U board. Any version of the MOD-101-U board can be used in the PortMaster 2E and
      PortMaster 2Ei.

17. Verify the position of the expansion board jumper.
      The jumper pin is located between the two cable connectors on the expansion board.

    - M0D-2E-10A and M0D-2E-10B asynchronous expansion boards. On these boards, the jumper pins are marked 1 and 2.
      For an S10 through S19 expansion board, verify that the jumper connects the pair of pins marked 1 to the middle pair of pins.
      For an S20 through S29 expansion board, verify that the jumper connects the pair of pins marked 2 to the middle pair of pins.
    - MOD-10I-U and MOD-10I-ST ISDN. On these boards, the jumper pins are marked 1, 2, and 3.
      For an S10 though S19 expansion board, verify that the jumper connects the pins 1 and 2.
      For an S20 through S29 expansion board, verify that the jumper connects pins 2 and 3.

18. Using a Phillips screwdriver, remove the back cover plates from the rear of the PortMaster.

    - S10 through S19 expansion board. Insert this expansion board directly above the rear face plate containing ports S0 through S9.

    - S20 through S29 expansion board. Insert this expansion directly board above the rear face plate containing ports S10 through S19.
19. Attach the rear face plates with the screws provided.

      Ensure that each face plate is aligned before tightening the screws.

20. Plug the 8-wire ribbon power cable and 60-wire ribbon bus cable into the front of each expansion board.

21. Replace the lid of the PortMaster case, and using a Phillips screwdriver, replace the screw.

22. Connect the PortMaster to the power source and turn the power switch on.

## Removing PortMaster Expansion Boards

Follow these instructions to remove PortMaster expansion boards.

### Required Equipment

- Number 1 Phillips screwdriver

### Procedure

Caution ¯ Wear a grounding strap when handling the internal components of the PortMaster.

1. Turn the power switch off and disconnect the PortMaster from the power source.

2. Lay the PortMaster down on a hard, flat, static free surface.
     Ensure that the LEDs are facing you.

3. Using a Phillips screwdriver, remove the screw from the top center of the PortMaster.

4. Remove the lid.
     With both hands on the sides of the PortMaster, push the lid firmly until it slides approximately 3 inches back. Lift the lid up and remove it.

5. Unplug the 8-wire ribbon power cable and 60-wire ribbon bus cable from the front of the expansion board.

6. Place the expansion board into an electrostatic discharge (ESD) bag.
     To ship or store the expansion board, ensure that it is in a ESD bag, and cushion it with foam in a sturdy box.

7. Using a Phillips screwdriver, reinstall the back cover plates shipped with the PortMaster.
     The PM-2E-30 and PM-2ER-30 are shipped with expansion boards installed and have no back cover plates. In this case, leave the slot open until the expansion board is reinstalled.

8. Replace the top of the PortMaster case, and using a Phillips screwdriver, replace the screw.

9. Connect the PortMaster to the power source and turn the power switch on.

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