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Two-Pin Jumper
This modem functions best when using DTR override with command echo disabled. The factory default
setting is "DTR drop causes the modem to hang up, auto-dial is inhibited." To configure these settings, do
the following:
1.
Connect to the modem using a terminal program, such as HyperTerminal.
2.
Type AT&F0 to restore factory configuration 1.
3.
Type ATE0&D0&W0 to disable the command echo, override DTR, and store these settings to profile 0.
4.
Disconnect from the modem and exit the terminal program.
For more information, refer to the Securcomm Uniflex modem operating instructions and programming
manual.
41.15
Comtrol RocketPort Hub Si
Three RocketPort Serial Hubs are supported. They are LAN attached serial hubs, using DB9 connectors.
The two-port hub has 10/100base-T input, with two selectable output ports. It is certified for up to eight ISCs
on each of the two downstream ports in an RS-485 configuration.
The four-port hub has a 10base-T only input, with four selectable output ports (RS-232, RS-422, or RS-485).
It is certified for a maximum of 16 ISCs on each RocketPort hub.
The eight-port hub has a 10base-T only input, with eight selectable output ports (RS-232, RS-422, or RS-
485). It is certified for a maximum of 16 ISCs on each RocketPort hub.
The modem can be set to dumb mode or smart mode using the two-pin
jumper located on the back panel of the modem. Use a jumper to
connect the two pins for dumb mode. For smart mode, leave them off
(unconnected). The default setting for Lenel hardware is smart mode.
When the modem is in dumb mode, it operates as though it has no
command mode. When the modem is powered on or reset, it will go
directly into the mode of operation for which it has been configured.
The purpose of dumb mode is for leased lines and special dial
applications.
If the modem is in dumb mode and it becomes necessary to reconfigure
it, remove the dumb mode jumper and then cycle power to the modem.
It will then be in command (smart) mode.
Hardware Installation Guide
253
revision 7 —
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