Product Description
Memotec Inc.
4-21
SDM-9230, providing up to 12 analog E&M voice ports in a single unit.
To interpret the status LEDs on this interface card, refer to
.
E&M signaling requires two sets of wires: one to carry signaling information (the E and
the M leads), and the other to carry the VF audio signals.
•
Audio signals are transported over either two wires (two-wire E&M) or four
wires (four-wire E&M).
•
Up to eight wires can be required in all, depending on the type of E&M used on
the PBX.
CAUTION:
:
For important E&M wiring and grounding considerations, refer to
“E&M Wiring and Grounding” on page 3-23
.
NOTE:
You must install a ferrite on each cable connected to an E&M port on an
SDM-9220 UAC or SDM-9230 UAC.
These ferrites are
not
provided with
the product package. For instructions, turn to
.
4.10.4
Channelized Digital Interfaces
The following digital interface cards are available: single port T1/E1, dual port T1/E1 and
ISDN BRI S/T.
You must install a DSP module if you intend to use any of these interface cards for digital
voice. See
“Installing or Upgrading the DSP Module” on page 3-5
.
Figure 4-13: The E&M Interface Card
Содержание NetPerformer SDM-9 Series
Страница 1: ...NetPerformer SDM 9120 9220 9230 Series Hardware Installation Guide ...
Страница 10: ...Memotec Inc ...
Страница 11: ...Memotec Inc 1 1 1 Preface ...
Страница 21: ...2 Memotec Inc 2 1 Unpacking ...
Страница 27: ...3 Memotec Inc 3 1 Hardware Installation ...
Страница 62: ...SDM 9XXX Series Hardware Installation Guide 3 36 Memotec Inc ...
Страница 63: ...4 Memotec Inc 4 1 Product Description ...
Страница 99: ...5 Memotec Inc 5 1 Serial Port and User Equipment Connections ...
Страница 108: ...SDM 9XXX Series Hardware Installation Guide 5 10 Memotec Inc ...
Страница 109: ...6 Memotec Inc 6 1 Troubleshooting Tips ...
Страница 113: ...A Memotec Inc A 1 Appendix A Warranty Information This appendix explains the conditions of the product warranty ...
Страница 117: ...B Memotec Inc B 1 Appendix B Compliance Information and Safety Warning ...
Страница 121: ...Memotec Inc B 5 ...
Страница 128: ...SDM 9XXX Series Hardware Installation Guide B 12 Memotec Inc ...
Страница 133: ...Memotec Inc B 17 Compliance to China RoHS ...
Страница 135: ...Memotec Inc B 19 ...