xe0092 Xecom, Inc, xe0092 Datasheet - Page 5

• Manufacturer Part Number: xe0092
• Description: Surface-mount Daa Modules For Audio Or Data Transfer
• Manufacturer: Xecom, Inc

XE0092 Pin Configuration
XE0092 Pin Descriptions
Pin Name
XECOM
1
2
3
4
5
6
7
VCC
TX+
/CID
TX-
/OH
RX-
/RI
Description
+3.3 or 5 Volt power source for the XE0092. VCC powers the /RI and /OH control lines.
TX- is the negative half of the differential transmit data input to the XE0092 from the host system. If the host
system uses a single ended transmit data output, that output should be connected to TX- and TX+ should be
grounded.
TX+ is the positive half of the differential transmit data input to the XE0092 from the host system. If the host
system uses a single ended transmit data output, that output should be connected to TX- and TX+ should be
grounded.
Switch-hook control to the modem. /OH is an active low input. Activating OH closes the switch-hook causing
the XE0092 to seize the local telephone line. The telephone line connection is dropped when OH is
deactivated.
The host can pulse OH to simulate rotary dialing. The pulse rate in the US is ten pulses per second. Each digit
is dialed as a series of pulses created by closure of the hook-switch, one pulse for the digit one to ten pulses for
the digit zero. The pulses must be asymmetrical so that the hook-switch is closed for thirty-one milliseconds
and open for sixty-nine milliseconds. An inter-digit delay of at least one hundred milliseconds is required.
Ring Indicate output from the module. /RI is active low. RI goes low for the duration of each incoming ring,
returning high between rings. The XE0092 recognizes ring voltages of twenty-eight to one hundred fifty volts
RMS in the frequency range of sixteen to sixty-eight Hertz.
/CID is an active low input to the XE0092. The host drives /CID low after the first ring to permit the Caller ID
signal to be presented on the RX outputs. The telephone network normally sends Caller ID information on
incoming calls between the first and second ring.
RX- is the negative half of the differential received data output from the XE0092. If the host system uses a
single ended received data input, that input should be connected to RX+ and RX- should remain open.
GND
VCC
/CID
RX+
TX+
/OH
RX-
TX-
/RI
1
2
3
4
5
6
7
8
9
(5)
10
11
TIP
RING
XE0092