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INTRODUCTION
The 4 Position Code Activated Switch,
switched to any of four RS-232 devices, designated A through D. Typically, the 4P-MAS is used to
allow one modem to access the configuration or out-of-band management ports of four remote devices
(see Figure 1A). Three modes of operation allow the selection of the port to be connected.
Menu Selection
The 4P-MAS selects the port to connect to the master based on menu selections.
The menu system allows convenient naming of each port, and setup of all 4P-MAS
parameters.
Lead Control
This option allows any of the four ports can access the master port by raising its
Request To Send (RTS) or Data Terminal Ready (DTR) control lead. This capability is
in addition to the menu selection as described above.
Manual Control
A front panel push-button allows local control of port selection.
There are four LED's on the front of the 4P-MAS to indicate which port is connected to the master.
There are four DB25S female connectors on the rear panel for the switched ports, (designated A-D) and
one DB25P male connector for the Master Port. The 4P-MAS also supports an internal modem option.
Dataprobe supplies modems from 2400 bps to 33.6 Kbps. This modem can be factory or field installed.
Figure 1 illustrates a typical system using the 4P-MAS.
REF: CAS\4P-MAS_V980326R.DOC
Model 4P-MAS
Internal or
External
Modem
11 Park Place / Paramus, New Jersey 07652
TEL: 201-967-9300
Website: www. dataprobe.com Email: tech@dataprobe.com
4 Position Menu Activated Switch
Model 4P-MAS
allows one master RS-232 port to be selectively
To 4 DTEs
A
B
Master
Port
To DCE
Technical Support Hotline: (201) 967-8788
FAX: 201-967-9090
C
D
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Related Manuals for Dataprobe 4P-MAS
Summary of Contents for Dataprobe 4P-MAS
- Page 1 A front panel push-button allows local control of port selection. There are four LED's on the front of the 4P-MAS to indicate which port is connected to the master. There are four DB25S female connectors on the rear panel for the switched ports, (designated A-D) and one DB25P male connector for the Master Port.
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Page 2: Operation
ENTER ESC{PASSWORD}ESC TO RETURN TO MENU At this point the Master Port is connected through to the port selected. The 4P-MAS is passive to the messages sent between the Master Port and the port selected. To terminate the session with the current port and bring back the menu, enter the escape character plus the security code and another escape character. -
Page 3: Local Configuration
Model 4P-MAS-30 Page 3 LOCAL CONFIGURATION A configuration menu is used to set most operational features of the 4P-MAS. 1) DEVICE LABELS 2) PASSWORD 3) BAUD: 9600 4) PARITY/DATA: N,8 5) LEAD CTL: N 6) MODE: MODEM 7) TIMEOUT: 0 X) EXIT ENTER >... - Page 4 ENTER Y/N > Enter Y to add RTS/DTR Lead control to the 4P-MAS. This mode allows the RTS or DTR of Ports A through D to select the Master Port. Change this setting to Yes if you require one or more of the devices connected to ports A through D to be able to dial out through the modem on the Master Port.
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Page 5: Lead Control
Port LEDs will turn off. Manual control will only be enabled only when the 4P-MAS is idle. If a caller has logged into the unit or Lead control is selected, the front panel switch ignored. The Timeout feature, if enabled continues to operate when Manual control is established. -
Page 6: Installation
Model 4P-MAS-30 Page 6 INSTALLATION Master and Switched Ports Connection to the Switched A-D ports is made Typical Master Port A-D Port using 25 pin D Subminiature connectors on the 2 TD 2 TD rear of the unit. The following leads are supported... -
Page 7: Specifications
MOD-336 33.6 Kbps Modem These modem options, when ordered with the 4P-MAS are supplied factory installed. They can also be ordered separately for field installation. Information on field installation is supplied with the modem. Connection to the dial line is made using a RS-232 to Modular Adaptor, Model MA-CAS, supplied with the modem. -
Page 8: Warranty
Page 8 TECHNICAL SUPPORT, RETURNS & WARRANTY Dataprobe Technical Support is available 8:30AM to 5:30PM ET to assist you in the installation and operation of this product. To obtain Technical Support call our Tech Support Hotline at 201-967-8788, or Email us at tech@dataprobe.com. Please have the following information available when you call: •...
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