25G SPF28 AOC

T&S Communication TSSP-8525G-xxxC is a single-Channel, Pluggable, Fiber-Optic SPF28 for 25 Gigabit Ethernet and Infiniband EDR Applications. It is a high-performance module for short-range data communication and interconnect applications that operate at 25.78125 Gbps up to 70 m using OM3 fiber or 100 m using OM4 fiber. This module is designed to operate over multimode fiber systems using a nominal wavelength of 850nm. The electrical interface uses a 20 contact edge-type connector. As a mature AOC factory in China, T&S produces SPF28 Active Optical Cables that are direct-attach fiber assemblies with SPF28 connectors. They are suitable for very short distances and offer a cost-effective way to connect within racks and across adjacent racks.

Specifications of 25g sfp28 aoc

Absolute Maximum Ratings

Recommended Operating Conditions

Transmitter Specification

Receiver Specification

Parameter Symbol Min Max Unit

Storage Temperature TS -20 85 ℃

Relative Humidity RH 0 85 %

Case Operating Temperature TCase 0 70 ℃

Supply Voltage VCC -0.3 3.6 V

25G AOC Cable Pin Descriptions

SFP28 AOC Cable Pin Definitions

PIN Symbol Name/Description

1 VeeT Transmitter Signal Ground

2 TX_FAULT Transmitter Fault (LVTTL-O) – Not used. Grounded inside the module

3 TX_DISABLE Transmitter Disable (LVTTL-I) – High or open disables the transmitter

4 SDA Two Wire Serial Interface Data Line (LVCMOS – I/O)

(same as MOD-DEF2 in INF-8074)

5 SCL Two Wire Serial Interface Clock Line (LVCMOS – I/O)

(same as MOD-DEF1 in INF-8074)

6 MOD_ABS Module Absent (Output), connected to VeeT or VeeR in the module

7 RS0 Rate Select 0 - Not used, Presents high input impedance.

8 RX_LOS Receiver Loss of Signal (LVTTL-O)

9 RS1 Rate Select 1 - Not used, Presents high input impedance.

10 VeeR Receiver Signal Ground

11 VeeR Receiver Signal Ground

12 RD- Receiver Data Out Inverted (CML-O)

13 RD+ Receiver Data Out (CML-O)

14 VeeR Receiver Signal Ground

15 VccR Receiver Power + 3.3 V

16 VccT Transmitter Power + 3.3 V

17 VeeT Transmitter Signal Ground

18 TD+ Transmitter Data In (CML-I)

19 TD- Transmitter Data In Inverted (CML-I)

20 VeeT Transmitter Signal Ground

AOC 25G SPF28 Cable Technical Drawings

L L1 L2 L3 W W1 W2 H H1 H2

MAX 57.75 48.0 44.65 102.5 13.75 14 12.25 8.65 0.55 10.4

Typical 57.55 47.8 44.45 101.5 13.65 13.9 12.15 8.55 0.5 10.3

MIN 57.35 47.6 44.25 100.5 13.55 13.8 12.05 8.45 0.45 10.0

Applications of 25G SPF28 AOC Cable

Ideal for high-density networking applications

Low power usage is extremely valuable in high data rate applications

Perfect for point-to-point, intra-rack and rack-to-rack connections of 25Gb equipment

T&S Communications, established in 2000 and located in Shenzhen, is a fiber optic products supplier in China, specializing in developing, manufacturing, marketing an extensive range of optical communications products from passive to active categories for optical communications networks and data centers especially.