S-4000 System
The S-4000S is a modular digital snake system delivering 40 channels of high quality audio at up to 24-bit/96kHz all over Cat5e cables. System highlights include remote controllable XR-1 professional quality mic preamps, redundant Ethernet ports and splits using standard Ethernet hardware. The snake can be configured in various ways with either analog or digital input or output cards. The standard configuration is a 32×8 system.

The S-4000S is a modular digital snake system delivering up to 160 channels of high quality 24-bit/96kHz audio over Cat5e cables. System highlights include remote controllable XR-1 professional quality mic preamps, redundant ethernet ports and splits using standard Ethernet hardware.

System Components
S-4000 Modular Digital Snakes are configured using two basic components, the S-4000H and the S-4000S. The S-4000H is a fixed 8 input, 32 output design that is typically used at the Front of House position or as the output side of a split.

The S-4000S is a modular chassis that is configured typically as an S-4000S-3208 with 32 inputs and 8 outputs. This configuration works perfectly with the S-4000H to make a 32×8 system. A 64×16 system can be easily configured using two S-4000S-3208, two S-4000H units and two Cat5e cables.

The S-4000S-3208 provides 32 mic/line inputs on the stage along with 8 returns from the console. At the FOH or console position, the S-4000H provides 32 outputs from the stage to the console's channel inputs. It also has 8 inputs to send buses from the console back to the stage for speakers and monitoring.

The other component of an S-4000 Digital Snake is the S-4000R remote controller. The S-4000R can be used at either the Stage or the FOH positions, but typically is used to control the input gains from the console at the FOH position.

S-1608 System
The S-1608 fixed snake system is a compact version of the modular system. Easy to use and quick to install this 16 input by 8 output point-to-point audio snake solution offers the highest quality audio signal available in a compact system.

S-0808 System
The S-0808 Digital Snake is an 8in/8out compact, lightweight snake that supports multiple power options including battery-power, embedded-powered over REAC and power over Ethernet (PoE). The versatility in power and input choices make the S-0808 ideal for location sound, festivals, stage boxes, remote broadcasting and other portable applications.

Merge Technology
The S-4000M REAC Merge Unit allows up to four Digital Snake heads to be merged into a REAC stream where the master device recognizes it as single REAC slave unit. This important technology enables distribution of multiple input/output units around a location, venue or stage for flexible point-to-point digital snake or V-Mixing System configurations.

FOR MORE INFORMATION -
http://www.rolandsystemsgroup.com/en/products/rss-by-roland/digtal-snakes/overview