HP Vectra 520 Installationsanleitung Seite 170

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Seitenansicht 169
Modems 5-7
Meridian MAX
Installation Guide
Product release 8
Limited-distance modems
The following modems are supported for remote diagnostics:
Gandalf LDS 120E
Develcon DS 511A
If you need more than 15 meters (50 feet) between the Meridian MAX and
any peripheral, you need to use a limited-distance modem. The
limited-distance modem must be self-powered. The added range depends
on the modem you obtain. Limited-distance modems are recommended for
use inside buildings only.
The following settings are used for a limited-distance modem:
9600 baud rate
8 bits, No-parity, 1 stop bit
Gandalf LDS 120E and Develcon DS 511A limited distance
The Gandalf LDS 120E and Develcon DS 511A limited-distance modems
allow you to extend the distance between the SNN/SNN-E’s VME
multiport cable or the IPE/IPE-E’s four-port I/O cable and any connected
peripheral by up to a nominal distance of eight km (five miles). Other
limited distance modems may not provide the eight km (five miles)
distance. It is your responsibility to check with the particular manufacturer.
The Gandalf LDS 120E and Develcon DS 511A limited-distance modems
can also be used for both the remote supervisor login and the network link.
Refer to the “NAC Connectivity” section for more information.
For each peripheral requiring a limited-distance modem, you require either
the null modem cable NT7D99AA (SNN/SNN-E) or NT1R03HF
(IPE/IPE-E) connected between the modem and the multiport cable
connected at the Meridian MAX.
If the peripheral device connected to the second modem is a female DTE
connection, the NT1R03Dx cable must be used to connect this modem to
the peripheral device. If the peripheral device connected to the second
modem is a male DTE connection, the NT1R03Ex cable must be used to
connect this modem to the peripheral device.
The switch on the back of the modem should be set to the “normal”
position.
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