XE1000 查看數據表（PDF） - Xecom
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XE1000 Datasheet PDF : 8 Pages
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XE1000 Pin Configuration & Descriptions
PIN NAME DESCRIPTION
1 /LS Active low, "Line Short" is used
during pulse dialing to short the
line for Tinkle Suppression in the
UK. This line must be held to at
least 4.0 volts to disable the Line
Short.
/LS
Vcc
/RI
1
2
3
2 Vcc Vcc is the +5 volt supply voltage
3
/RI
input.
This active low, open collector
output provides a pulse train at
twice the ring frequency present
T1
/OH
GND
T2
7
8
9
10
on tip and ring.
XE1000
22 TIP
21 BS
20 D2
19 RING
18 D1
17 RET3
16 WG1
15 RET2
14 RET1
13 R2
12 R1
4-6 — No Pin
7
T1 The positive input/output for differential analog signals.
8 OH Active low, the on-hook signal places the XE1000 in the on line state. It is pulsed in
combination with LS to provide pulse dialing.
9 GND Ground reference voltage for all control signals.
10 T2 The negative differential input/output for analog signals.
11 — No Pin
12 R1 R1 provides the Tip connection to the ring detect circuitry.
13 R2 R1 provides the Ring connection to the ring detect circuitry.
14 RET1 RET1 provides a 600 ohm line match when tied to Pin 17, RET3.
15 RET2 RET2 provides a custom line impedance match when connected to Pin 17, RET3, via
an external RC network.
16 WG1 Normally this pin is tied to Pin 20 but provides a connection for the billing tone filter
when required for homologation.
17 RET3 This pin is used in conjunction with pin 14 or 15 to provide matching line impedance.
18 D1 Normally this pin is tied to Pin 19, Ring, but provides a connection for the billing tone
filter when required for homologation.
19 Ring This Ring signal provides one of the two wires for connection to the telephone network.
20 D2 Normally this pin is tied to Pin 16 but provides a connection for the billing tone filter
when required for homologation.
21 BS This wire provides the bell shunt connection for the UK, blue wire.
22 Tip The Tip signal provides half of the two-wire connection to the telephone network.
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XE1000
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