Black Box ME475A-R2, Руководство пользователя

Страница: 17 / 32

724-746-5500 | blackbox.com Page 17
Installation
*Standard color codes—yours may be different
†Connection to ground is optional
3. AT&T standard modular color codes:
Four-Wire Cable Connection Via Terminal Blocks
If you are not going to use the modular jacks then follow the instructions below.
1. Locate the terminal block on the back of the unit. It should look like the following
diagram:
* The “+” and “-” indicators are for reference only.
The ME475A-R2 is not sensitive to polarity.
2. Connect one pair of wires in the telephone cable to the Transmit lugs (TX+ and
TX-) on the terminal block.
3. Connect the other pair of wires in the telephone cable to the Receive lugs (RX+
and RX-) on the terminal block.
4. If there is a shield around the telephone cable, it may be connected to "G" on the
terminal block. We recommend connecting the shield at the computer end only
Signal Pin# Color* Color Pin# Signal
GND† 2 Orange --------- Brown 7 GND
RCV 3 Black --------- Green 5 XMT
XMT 4 Red --------- Yellow 6 RCV
XMT 5 Green --------- Black 3 RCV
RCV 6 Yellow --------- Red 4 XMT
GND 7 Brown --------- Orange 2 GND
1 - Blue
2 - Orange
3 - Black
4 - Red
5 - Green
6 - Yellow
7 - Brown
8 - Slate
RX+ RX- GND TX- TX+