Western Telematic SRM-100 manual Unit Description, Front Panel

2.Unit Description

2.1. Front Panel

Figure 2.1: Front Panel (Not to Scale)

ÀON Indicator: Lights when power is applied to the unit.

ÁRDY: Flashes to indicate that the unit is ready to receive calls or enter the Command Mode.

ÂPASS: Lights when a caller has entered a valid password and has been allowed to access the connected device.

ÃDCD: Lights when DCD is high at the Modem Port.

ÄRXD: Lights when RXD is high at the serial Modem Port.

ÅTXD: Lights when TXD is high at the serial Modem Port.

ÆRTS: Lights when RTS is high at the serial Modem Port.

ÇCTS: Lights when CTS is high at the serial Modem Port.

ÈDTR: Lights when DTR is high at the serial Modem Port.

Notes:

•Normally, the DTR signal must be high in order for the modem to communicate with the secure device. If the DTR signal is low, the SRM-100 will prompt callers to enter a password, but will disconnect when a valid User Password is entered.

•When the Ignore DTR option (See Section 5.3) is enabled, the SRM-100 will ignore the DTR signal at the serial Modem Port. This allows the serial Modem Port to be connected to a device that does supply a DTR line.

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