Black Box MD3310-R2, Руководство пользователя

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CHAPTER 5: Operation Mode Selections
(4) Point-to-Point Slave/Repeater
Option 4 allows you to designate the modem to act as either a slave or a repeater,
depending on the instructions received from the master for the specific
communications session. When a modem is placed in an ideal location, this setting
offers the flexibility of using that modem as an end point in the communication
link (slave) or to extend the link to a point further (repeater). These functions are
not, however, available simultaneously (the modem cannot act as both a slave and
a repeater at the same time).
NOTE
A modem designated as a repeater has no security features, as
explained below. When a modem is designated as a point-to-point
slave/repeater, it will allow any master to use it as a repeater.
(5) Point-to-Point Repeater
The modem allows the use of up to two repeaters in a communications link,
significantly extending the operating range. When designated as a repeater, a
modem behaves as a pass-through link. All settings for the call book, baud rate,
and radio-transmission characteristics are disabled. A repeater will connect with
any master that calls it (the repeater must still be set up in the master’s Call Book).
The use of one repeater in a communications link will reduce the top data
throughput available when compared to a direct master-to-slave link (about 50%).
This impact is generally noticed only when using the modems at 115.2 kbps. The
throughput does not decrease further if two repeaters are used.
(6) Point-to-Point Slave/Master Switchable
Mode 6 allows the modem to be controlled entirely through software commands.
When in mode 6, a number of key parameters in the user interface may be
changed either directly (with Windows HyperTerminal or some other terminal
emulator) or through the use of script files. In addition, when the modem is in
mode 6 and isn’t calling a slave, it will be a slave itself and accept any appropriate
calls from other modems.