Model 9289
Spectracom Corporation
NetClock/NTP Network Time Provider Instruction Manual
7-2
7.1.2 Modem
Installation
The cable needed to connect the modem to the NetClock is a DB9 male to DB9 male null
modem serial cable. This should come with the modem package.
1. Connect one DB9 side of the null modem cable to the modem and the other DB9 side to
the Serial Setup port located on the rear of the NetClock.
2. Connect the CAT2 telephone cable from the analog phone line to the modem.
3. Connect the modem power adapter to a power outlet.
7.1.3 Modem
Configuration
The modem is configured from the System Modem Configuration screen, which includes the
Port Mode pull-down menu. The modem is connected to the Serial Setup port for normal
operation. The pull-down menu allows the operator to select the mode in which the serial setup
port will operate. Two options are available: Console mode and Client mode. The screen and
the menu available at the left of the screen vary depending on the mode.
Console Mode:
In this mode (Figure 7-1), Serial Setup port can be connected with a serial
cable to a computer with a serial terminal program running. The serial setup software
commands can then be used to interface with the unit. The modem operation will not be
available while selected to this mode.
Client Mode
: In this mode (Figure 7-2), the Serial Setup port can be connected to a modem for
dialing out. The Serial Setup port will be unavailable for network configuration while in this
mode.
ACTS Server Mode:
This mode (Figure 7-3) configures the NetClock to answer telephone
calls, using the modem, when connected to an analog telephone line. The modem connects to
the NetClock in the same manner as for Client mode.
NOTE:
Click “Submit” to apply the change to the modem mode. Return to Modem
Configuration to access the screen options for Client mode.
Summary of Contents for 9289
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