Digital PBXs (Max T1/E1™ solution)
Most new PBXs are digital. If your customer has a digital PBX, the optimal Max solution is the Max T1/E1. To connect the Max
T1/E1 to a digital PBX, simply use an RJ-48 cable to connect the T-1/E-1 port on the Max to the T-1/E-1 port on the PBX. With
a Max T1/E1, users on the PBX share either 24 (T-1 connection) or 30 (E-1 connection) virtual lines. For example, if there are
50 phones on the PBX and the Max is connected to an E-1, these 50 users will be sharing 30 lines. The diagram below shows
the basic connections of a Max T1/E1 in a digital PBX environment:
PBX
Telephone
PBX
Switch
1
2 3
4
5 6
7
8 9
*
8 #
1
BLK
SYN 1
E1/T1
E1/T1
SYN 2
DVU
For factory
Internet
Net2Phone
Network
CO Line
PSTN
RJ-48 shielded cable -
connects to T1/E1 interface
BLK
MPU
E1/T1
LAN
2
use only
Router
4
2
5
3
1
Uplink
Power
on PBX
OPR LTX STX
SYN LRX SRX
CONSOLE
SERIAL
PWR
19
1 PBX Connections
With an RJ-48 cable, connect the
right-side T-1/E-1 port on the Max
to the T-1/E-1 port on the PBX.
2 LAN Ethernet Connections
To connect the Max to the LAN,
plug the RJ-45 LAN jack from the
hub or router into the LAN port on
the Max.
3 PC Connection
To initially configure the Max, you
must connect it to a PC. Use a 9-
pin RS-232C cable to connect the
PC's COM1 serial port to the Max
console.
4
4 AC Power Connection
Plug the Max into a power outlet.
AC 110-240V
Note: Certain digital PBXs may
feature analog ports in addition to
the T-1/E-1 interface. If this is the
3
case, it is possible to connect a
Max FXO or FXS version to the
digital PBX, depending on whether
there is an available analog trunk
card or analog line card.