XECOM XE0068 Datasheet
XECOM (1) XE0068
XE0068
1/99
FCC Registered Phone Line Interface
Description
The XE0068 is a compact, FCC registered telephone
line interface. Designers can use the XE0068 in their
telecom designs without going through the time and
expense of FCC Part 68 Registration. This makes the
XE0068 perfect for low volume and prototype designs.
To attain FCC part 68 Registration on the XE0068,
Xecom was required to control the output level to the
telephone line and provide a 2-second billing delay.
Xecom designed an Automatic Gain Control circuit to
meet FCC rules limiting transmit level. Xecom's Automatic Gain Control circuit optimizes a wide range of input signal levels for placement on the telephone line.
The XE0068 can support data, fax, voice, and DTMF
signalling applications.
Features
* Small Size - 1.75" x 1.08" x 0.42";
* User Transferrable FCC Part 68 Registration;
* Ring Detection and Hookswitch Control;
* 1500 Volt Isolation;
* 800 Volt Surge Protection;
* Integrated supplemental lightening protection
* Integral 2-Second Billing Delay;
* Automatic Gain Control of transmit signal;
* Integral 2 to 4 wire convertor;
* Suitable for broad bandwidth applications;
Ring
Detect
Hookswitch
Control
Billing
Delay
2 to 4 wire
convertor
AGC
XMIT
RCVR
D/V
TIP
RING
RI
OH
Line
Transformer
BLOCK DIAGRAM
XECOM (2) XE0068
A
B
Denotes Pin 1
C
D
G
J
H
E
F
K
Inches Metric(MM)
Dim Min Max Min Max
A 1.735 1.765 44.07 44.83
B 1.065 1.095 27.05 27.81
C 0.420 0.430 10.67 10.92
D 0.890 0.910 22.61 23.11
E 1.190 1.210 30.23 30.73
F 0.125 0.200 3.18 5.08
G 0.080 0.100 2.03 2.54
H 0.265 0.285 6.73 7.24
J 0.090 0.110 2.29 2.79
K 0.020 0.025 0.51 0.64
Pins are 0.025 inch square, tin plated.
Recommended PCB hole size is 0.056 inches (0.86 MM)
RJ11C
TIP
RING
+5V
RECEIVE SIGNAL
TRANSMIT SIGNAL
D/V
1
13
26
24
14
XE0068
3
4
22
21
19
18
RI
OH
RCVR
XMIT
System Controller
Signal
Source
Signal
Decoder
TPB270
Ferrite Beads
470 pFd
Mechanical Specifications
Typical Connection Diagram
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