Converting a party-line channel to 4-wire audio, Converting a party-line channel to 4-wire audio -3 – Clear-Com EF-701M User Manual
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Figure 1-1: Connecting a party-line channel to a Matrix intercom
CONVERTING A PARTY-LINE CHANNEL TO 4-WIRE AUDIO
The EF-701M Interface converts a channel of standard or TW party line to 4-wire audio
and, at the same time, converts a DC-voltage call signal or 20-kHz call signal to RS-422
data. This 4-wire audio and RS-422 data can then be sent to a fiber-optic converter
(modem); over copper, unshielded twisted-pair (UTP) cable such as Category 3, 5, or
above; or it can simply be used as an excellent stand alone 2-wire to 4-wire converter. In
most cases though, EF-701M units will be used in pairs, because once the signal is
3
3
= Male 3-Pin XLR
= Female 3-Pin XLR
Party-Line Intercom
EF-701M
3
3
3
3
RJ-45
RJ-45
Matrix
See also other documents in the category Clear-Com Accessories communication:
- CS-702 (36 pages)
- MS-702 (32 pages)
- MS-704 (40 pages)
- RCS-2700 (54 pages)
- SB-704 (42 pages)
- RS-701 (2 pages)
- RS-702 (3 pages)
- RS-601 (No longer available) (60 pages)
- RS-603 (No longer available) (58 pages)
- RS-601 (No longer available) (46 pages)
- RS-602 (No longer available) (56 pages)
- PK-7 (14 pages)
- PS-702 (28 pages)
- PS-704 (34 pages)
- RM-702 (42 pages)
- RM-704 (46 pages)
- HB-702 (24 pages)
- KB-701 (24 pages)
- KB-702 (32 pages)
- V-BOX (2 pages)
- TW-12C (20 pages)
- IF4W4 (20 pages)
- TW-47 (30 pages)
- TWC-701 (18 pages)
- PRC-2 (24 pages)
- PTX-3 (32 pages)
- AB-120 (35 pages)
- AX-704 (30 pages)
- FL-7 (16 pages)
- WP-2 (1 page)
- WP-6 (1 page)
- HMS-4X (2 pages)
- HMS-4X (2 pages)
- HMS-4X (143 pages)
- HMS-4X (197 pages)
- HRM-4X (2 pages)
- Eclipse HX-PiCo (86 pages)
- Eclipse HX-PiCo (4 pages)
- Eclipse HX-PiCo (70 pages)
- Eclipse HX-Delta (2 pages)
- Eclipse HX-PiCo (290 pages)
- Eclipse HX-Delta (143 pages)
- Eclipse HX-Median (145 pages)
- Eclipse HX-PiCo (186 pages)