Our SDX 6324 optical line terminal (OLT) is specifically designed to deliver high-performance broadband services to low-density applications. The new fiber access platform features four Combo PON ports, providing a perfect balance of cost, size and functionality.

1. Introducing the industry’s
smallest Combo PON OLT
Adtran extends next-generation OLT family with SDX 6324 to
tackle low-density FTTH deployments
September 2023

2. 2023 © ADTRAN, INC.
2
MARKET DRIVERS
The underlying global problems in fiber deployment
Balancing cost pressures and planning in an inflationary environment
Addressing skilled labor shortages
Managing operational expenses efficiently
Underutilized equipment with skyrocketing costs

3. 2023 © ADTRAN, INC.
3
But what were we missing?
Over the last eight years, Adtran has worked to create a portfolio of OLTs that:
• Optimize cost and efficiency for a wide range of deployment scenarios
• Reduce the level of expertise needed to deploy and operate the solution
• Don’t consume more resources than necessary (space, power, cooling)
And yet, it was clear we were missing a solution that addresses low-density
applications and enables operators to scale down without obstructing future growth.
The problem-solving power of the SDX family of OLTs
SIMPLICITY, FLEXIBILITY AND EFFICIENCY

4. 2023 © ADTRAN, INC.
4
Meet the Adtran SDX 6324
The small OLT that delivers big things

5. 2023 © ADTRAN, INC.
5
Compact and power-efficient, our SDX 6324
addresses the key challenges of established,
emerging and migrating service providers. It’s
the ideal solution for low-density FTTH
deployments.
THE SMALL OLT THAT DELIVERS BIG THINGS
Introducing the industry’s smallest Combo PON OLT
Technical specifications
PON ports Four Combo PON (GPON+XGS-PON)
Uplinks 4x 10GbE SFP+
Subscribers ~500 (up to 1:128 split)
Dimensions 235 x 381 x 44mm (1RU) (D x W x H)
Airflow Front / side (left) to side (right)
Weight 8.8lbs / 4kg
Temperature
range
-40°C to 65°C (temp-hardened)
Powering -48VDC redundant feed
Typical power
consumption
95W (-48VDC at 25°C w/o optics) Power, alarm, USB, management 4x 10GbE
1-4 Combo PON SFPs

6. 2023 © ADTRAN, INC.
6
Efficiency
per
subscriber
Subscriber density
UNMATCHED FLEXIBILITY
SDX Combo PON OLT appliance family
SDX 6320
16-port Combo PON
48-port Combo PON
SDX 6330
High
4-port Combo PON
SDX 6324
With the addition of our 4-port OLT, our
growing family of Combo PON OLTs
covers all deployment scenarios from
large-scale to niche applications.
High
Low

7. 2023 © ADTRAN, INC.
7
UNMATCHED FLEXIBILITY
The breadth of the SDX 6000 Series
Model PON ports Uplinks Height
Subscriber
count
Temp-
hardened
SDX 6330-48 48 Combo 2x 200GbE, 2x 100GbE, 2x 25GbE 2.5RU ~6,000 ✓
SDX 6320-16 16 Combo 4x 100GbE, 4x 10GbE 1.5RU ~2,000 ✓
SDX 6324-4 4 Combo 4x 10GbE 1RU ~500 ✓
SDX 6020-48 48 GPON 4x 100GbE, 4x 10GbE 2RU ~6,000 ✓
SDX 6010-16 16 GPON 2x 40GbE, 4x 10GbE 1RU ~2,000 ✓
SDX 6312-4 4 Combo 4x 10GbE SEALED ~500 ✓
United under a single control and orchestration platform,
our SDX family of OLTs also helps simplify operations and
streamline service delivery through an automated,
intelligent network.

8. 2023 © ADTRAN, INC.
8
LOW-DENSITY OLT APPLICATIONS
Low-density area coverage
Low-density OLT
GPON
GPON
XGS-PON
100 to 500 subscribers
Up to 60km
Up to 80km
Combo PON
Deliver cost-effective services to subscribers
in sparsely populated rural locations with a
significantly lower upfront investment.

9. 2023 © ADTRAN, INC.
9
LOW-DENSITY OLT APPLICATIONS
Remote area coverage
High-density OLT Low-density OLT
Up to 80km Up to 80km
Up to 60km
GPON
XGS-PON
GPON
GPON
XGS-PON
GPON
2x 10GbE
Ensure symmetrical, multigigabit broadband
services for even the most difficult-to-serve
communities.

10. 2023 © ADTRAN, INC.
10
LOW-DENSITY OLT APPLICATIONS
Multi-dwelling unit applications
High-density OLT Low-density OLT
Up to 80km Up to 80km
Up to
1:128 split
Deploy a discrete solution with minimal space,
minimal power consumption and minimal noise.
With our SDX 6324, you can service over 500
residential units in a short fiber loop environment.

11. 2023 © ADTRAN, INC.
11
LOW-DENSITY OLT APPLICATIONS
Wireless ISP applications
Combo PON
10Gbit/s up to 10km
(wireless backhaul)
GPON
XGS-PON
GPON
XGS-PON
SFP+ ONT
FWA
Up to 60km
Low-density OLT
in a cabinet
For any operator looking to make the move into fiber-based deployments, our
SDX 6324 is your key to expanding fiber reach beyond conventional boundaries.

12. 2023 © ADTRAN, INC.
12
Simple installation
Flexible deployments
Efficient operation
Learn more at adtran.com/sdx-6324

13. Thank you
adtran.com