Digital Equipment MM-10 Series User manual

EK-DLXUT-IM. A01
Installing and Cabling the 10BaseT MM-10 (DLXUT)
Introduction
The 10BaseT MM-10 is partof the MM-10 product family (whichalso includes the 10BaseFL, 10Base2, AUI, and
Reverse AUI). It provides connectivity between a host module such as the DIGITAL MultiSwitch Hub 624T and
network devices using 10BaseT. It has a crossover wired, 8-pin MJ port connector (labeled X) and a straight-
through wired, 8-pin MJ port connector (labeled //). Use only one connector at a time. The MM-10 has jumpers
that control the MM-10 configuration, such as enabling SQE test or monitoring transmit or receive data.
Configuring Jumpers on the 10BaseT MM-10 Option Card
The MM-10 jumpers are set to the most commonly-used configurations. For special applications or
troubleshooting, you may wish to reconfigure the jumper settings. Refer to the following figure and table.
10BaseT MM-10 Jumper Locations
Item Jumper Description Default
1ACT —> Sets Activity LED to blink on for:
• RX = receive packets only
• TX = transmit packets only
• BOTH = all packets
BOTH
NPB-0773-97F
DLXUT-MA
2
4
1
3
NPB-0774-97F

Installation Procedure
The 10BaseT MM-10 installs into one of the Carrier Card slots and is hot-swappable. To install the 10BaseT MM-
10, complete the following steps. A Phillips-head screwdriver is required.
Note: Installing MM-10s into the DIGITAL MultiSwitch Hub 624T requires prior installation of the DIGITAL
MultiSwitch Hub 624T Carrier Card, part number DLXMC-MA, which is not hot-swappable.
1Hold the 10BaseT MM-10 by its bezel and align the edges of the MM-10 (1) with the card guides (2) in the
Carrier Card. Push in the 10BaseT MM-10 until it is firmly seated in the option slot.
2Align and securely fasten the two screws.
3Align the release tab (1) onthecableplug(2)with the port connector (3) onthe MM-10’sUTP port connector.
Insert the plug into the connector until the release tab snaps into the locked position. Connect the other end of
the cable to your network end device.
For further configuration and LED state information, see the DIGITAL MultiSwitch Hub 624T Installation and
Configuration manual.
© Digital Equipment Corporation 1997. All rights reserved.
DIGITAL and the DIGITAL logo are trademarks of Digital Equipment Corporation.
2SQE Test Enables SQE test
0= Disable; 1 = Enable Disable
3FDX Full Duplex operation
0= Half Duplex, 1= Full Duplex Half Duplex
4Manual Link
Enable Allows operation with legacy devices that do not emit link pulses.
0 = Off; 1= On
Off
Item Jumper Description Default
NPB-0596-96F
BA
DLXUT-MA
DLXUT-MA
1
2
NPB-0652-96F
B
1
2
3