
Multiport Serial TAP Input
122 025-9035AA
mounting studs. Then mount the blue 50-pin connector to the studs using the
supplied screws.
• Run the blue cable up between the plastic card guides of the Multiport card's slot
and the next slot. Pull it through enough so you will be able to plug it into the card
easily.
• Attach the rectangular blue cable connector to the mating 50-pin connector at the
lower edge of the Multiport board. The blue ribbon cable will hang straight down
from the bottom edge of the board when correctly installed. Make sure the
connector is not offset left or right.
• Slide the board into its slot. (It may be a bit difficult due to the width of the cable).
Secure it with the plastic latches at top and bottom.
• Mount the new punch-down block in your wiring area near the right side of the
terminal, near your other telco and radio punch-down blocks.
• Use the supplied double-ended 50-conductor cable to connect the new 50-pin
connector to the new punch-down block.
Double-check your work.
Turn on power to the terminal.
When you first turn it on, the Chan 1 - Chan 8 lights on the front panel of the Multiport
card should show how many ports are installed - 2, 4, 6, or 8. (Once it is running, these
lights show activity instead).
You should see the machine boot up as usual. If we have already updated your paging
terminal software configuration you should see the Multiport card loaded up, and its
Select and Test3 lights should flash like the other cards. If the software has not been
updated, the card will just sit there - call us to do the software update.
Connections
Refer to the Figure 29 on page 128 for connection of serial devices to the punch-down
block.
To hook up to most equipment, you will need to provide a DB-25P (male) connector, and
some wire - 26 gauge (or sometimes 24 gauge) solid wire is easiest to punch-down. We do
not provide these items.
Please note that there is currently NO real use of the handshaking lines on the serial card.
Only the Transmit, Receive, and Ground connections are actually used.
Miscellaneous
If you have an older schematics manual that lacks information on the Multiport card, and
want the schematic, please request it from us. For most customers, this is not necessary -
we repair problems with cards.
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