ADTRAN Express 3000 SP Technické informace stáhnout pdf (Strana 90)

Integrators’ Reference Manual for ViewStation EX, ViewStation FX, and VS4000

80 www.polycom.com

NT-1 Device

The Quad BRI network interface module requires an S/T interface.

If your site does not use an internal telephone system (PBX), you

must connect the Quad BRI module to the ISDN line(s) through a

network termination (NT-1) device, which provides the S/T

interface.

Cables Used with the Quad BRI Network Interface Module

The network cables are standard CAT5 cables. If you are connecting

to a PBX, you may need a crossover cable.

Installation

To connect the Quad BRI network interface module to the

system:

1. Make sure your system is turned off.

2. Connect the peripheral side of the Quad BRI network interface

module to the system using the supplied network interface

cable. This cable is color-coded blue on one end, green on the

other.

Figure 4-3. Quad BRI Network Interface Module (Peripheral Side)

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ADTRAN Express 3000 SP Technické informace Strana 90