Toa N-8000 Series - Manual (Page 372)

3-68
Chapter 3 INSTALLATION & WIRING
[Connecting to the PBx's analog e&M interface]
Connect the PBX's transmitting line to the unit's RX terminal, and the PBX's receiving line to the TX terminal.
Also connect the PBX's M (Mouth) line to the unit's E (Ear) terminal, and the PBX's E line to the M terminal.
CH1
TX RX C
M
TX RX C
E M E
CH2
N-8000MI's PBX interface terminal
To PBX analog E&M interface's transmitting line (T2)
To PBX's ground point
To PBX analog E&M interface's M and E lines
To PBX analog E&M interface's receiving line (R2)
2 channels
To PBX analog E&M interface's transmitting line (T1)
To PBX's ground point
To PBX analog E&M interface's M and E lines
To PBX analog E&M interface's receiving line (R1)
[Connecting to the Intercom's Tie-Line Unit]
Connect the intercom's transmitting line to the unit's RX terminal, and the receiving line to the TX terminal.
CH1
M
TX RX C
E M
TX RX C
E
CH2
N-8000MI's PBX interface terminal
To Intercom's transmitting
line (T1)
To Intercom's receiving
line (R1)
To Intercom's transmitting
line (T2)
To Intercom's receiving
line (R2)
2 channels
Notes
• The "C" terminals for CH1 and CH2 are internally connected to the unit body (functional earth terminal).
• Do not ground the Functional earth terminal (No. 6 on p. 1-60 ) in this PBX connection.
Tips
• Output level and input sensitivity can be adjusted in the range of 0 to 15 dB depending on the equipment to
be connected and cable length. (Refer to p. 5-46 .)
• The Line attribute (Address signaling) and Line start method (Start dial supervision signaling) can be set for
the connected equipment. (Refer to p. 5-46 .)
Tip
Output level and input sensitivity can be adjusted
in the range of 0 to 15 dB depending on the
equipment to be connected and cable length.
(Refer to p. 5-46 .)