# Telstra ISDN 525/00043 P/N:1078754 NT1 Network Termination 3 MONTHS WARRANTY

**Telstra ISDN 525/00043 P/N:149535 NT1 Network Termination ISDN Device.**

  

**The Network Termination 525/00043 (NT1) is a basic rate (2B+D) ISDN device that terminates the exchange line in the customer’s premises and interfaces with the customer’s Terminal Equipment (TE).**

**Direct connection of customer’s TE can be made using the two ‘S/T’ ports. Alternatively, up to eight items of ISDN terminal equipment can be connected via an S-Bus wired to one of the ‘S/T’ ports.**

[**Contact us**](https://australianempire.com.au/pages/contact) if you have any questions — we're happy to help.

## Details

- **Price:** 34.87 AUD
- **Vendor:** Australian Empire Shop

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 34.87 AUD | In stock |

## Images

- Telstra S/T interface adapter with power and line ports, warning label, and indicator lights

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> Source: [Australian Empire Shop](https://australianempire.com.au/products/telstra-isdn-525-00043-p-n-1078754-nt1-network-termination-3-months-warranty)
> Updated: 2026-09-08