To Remove The Internal Modem - Reftek 130-SMHR/9 User Manual

Rev A
Function
Primary Function
Configuration
Hardware Location
Note: You must remove the internal modem (and jumper) before connecting an external modem to the serial port.

To remove the internal modem

1. Power down the 130-SMHR/9.
2. Flip the draw latches.
3. Remove the enclosure lid and set it gently on the side of the enclosure lid (not upside-down) to remove
boards and avoid contamination of the seal.
Note: Be careful not to break the ground cable attached to the lid. The order of removal is not important until the
130-SMHR/9 needs to be assembled.
4. Disconnect the cable from the RT570 board.
Note: Make sure the seal strip stays on the enclosure lid of the 130-SMHR/9 assembly.
5. Place the dust caps on the unit and turn the enclosure lid on its connections.
6. Loosen and remove the six #6-32x2 screws from the stack.
Note: Retain the lock washers with the screws so they do not get misplaced.
7. Disconnect the CPU ribbon cables from the RT570 board by spreading the ears on the connections of the
RT570 board.
8. Remove the RT570 Compact Flash board and set it aside.
9. Remove the RT506 CPU board and set it aside.
10. Remove each RT608 A/D board and set it aside.
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REF TEK 130-SMHR/9 Users Guide
98060-00-UG
Characteristics
This port provides for connecting the optional internal modem to a phone line.
By default, the 130-SMHR/9 software talks to the internal modem at 115,200 baud, no
parity, 8 data bits, and 1 stop bit.
This port is accessible at the Modem connector on the faceplate.
5/6/2021
Reftek Systems Inc.