Specify the single-mode optical route and modular host requirements for Hirschmann MSM20-S2S2S2S2SY9HH9E99.9.99
Hirschmann MSM20-S2S2S2S2SY9HH9E99.9.99, part number 942077003, is the Hirschmann MSM20-4FX-SM configuration described in the captured manufacturer record. The single-mode version provides four fixed 100BASE-FX SM-SC interfaces through an MSP media-module slot. A single-mode label does not by itself define a supported distance; the complete optical path remains part of the engineering check.
Define the complete SM-SC optical budget
The four ports on Hirschmann MSM20-S2S2S2S2SY9HH9E99.9.99 are fixed 100BASE-FX single-mode SC interfaces. Single-mode is a media description, not a complete distance guarantee. Review transmitter/receiver characteristics, route attenuation, connectors, splices and the far-end optical specification before approval.
Use the complete Hirschmann MSM20-S2S2S2S2SY9HH9E99.9.99 and part number 942077003 when ordering because the multimode neighbor has similar mechanics but a different optical interface. Preserve the verified route and peer references in the equipment schedule.
Identify the media module before comparing fiber options
Hirschmann MSM20-S2S2S2S2SY9HH9E99.9.99 is the complete media-module code for catalog Type MSM20-4FX-SM and part number 942077003. Use those identifiers with the compatible MSP host, slot position and installed media schedule. A request for a generic four-port Hirschmann module does not establish the same optical or combo-port arrangement.
- Confirm the complete module label.
- Record the host switch and slot.
- Keep media and far-end details with the module code.
- List SFPs and patch accessories separately where required.
Reference image for Hirschmann MSM20-S2S2S2S2SY9HH9E99.9.99. The pictured unit may differ from the exact port, enclosure or module configuration.
| Complete product code | Hirschmann MSM20-S2S2S2S2SY9HH9E99.9.99 |
|---|---|
| Catalog Type | MSM20-4FX-SM |
| Part Number | 942077003 |
| Port / media configuration | Port 1: 100BASE-FX, SM-SC; Port 2: 100BASE-FX, SM-SC; Port 3: 100BASE-FX, SM-SC; Port 4: 100BASE-FX, SM-SC |
| Operating voltage | Power supply via the backplane of the MSP switch |
| Power consumption | 5 W |
| Operating temperature | 0-+60 °C |
| Dimensions / weight | 38 mm × 133 mm × 118 mm / 249 g |
| Protection | IP20 |
The installed route determines optical compatibility
For each Hirschmann MSM20-S2S2S2S2SY9HH9E99.9.99 optical connection, record fiber type, connector, approximate route length, patch panels, intermediate joins and opposite interface. Calculate or review the path against the applicable optical specifications rather than assuming that a visible link proves adequate margin.
After commissioning, retain normal link observations and application-test results. These records help isolate fiber degradation, contamination, peer faults or host issues before Hirschmann MSM20-S2S2S2S2SY9HH9E99.9.99 is removed unnecessarily.
Verify slot and backplane compatibility before ordering
The operating-voltage entry for Hirschmann MSM20-S2S2S2S2SY9HH9E99.9.99 states: Power supply via the backplane of the MSP switch. The module therefore depends on a compatible MSP switch backplane rather than an independent field supply. Verify the host model, available slot, supported module combination and total chassis power before procurement.
During installation, isolate and handle the modular system according to the manufacturer procedure. Record the slot assignment and host identity after acceptance. That pairing is essential when Hirschmann MSM20-S2S2S2S2SY9HH9E99.9.99 or the chassis is later replaced.
Acceptance must prove the connected optical or combo link
Commission each active interface on Hirschmann MSM20-S2S2S2S2SY9HH9E99.9.99 with its actual far-end equipment. Record link state, expected rate, cable or SFP reference, application communication and the host slot. For combo ports, confirm which medium is active; for fixed FX ports, verify the matching optical interface and installed route.
A useful baseline ties those observations to part number 942077003 and the full Hirschmann MSM20-S2S2S2S2SY9HH9E99.9.99 code. If a link later fails, maintenance can compare both ends and the physical path before replacing a module that may not be the cause.
Compare the removed module with the complete offered code
A replacement for Hirschmann MSM20-S2S2S2S2SY9HH9E99.9.99 must preserve host compatibility, slot function, port medium, connector arrangement and required conformity evidence. Compare the removed label, part number 942077003, host model and current media schedule with the offered item.
If an alternative module is proposed, document differences and the required configuration or cabling changes before release. Keep the decision in the Hirschmann MSM20-S2S2S2S2SY9HH9E99.9.99 service record so future repeat orders retain the original system context.
Prepare the modular-network purchasing line
Request Hirschmann MSM20-S2S2S2S2SY9HH9E99.9.99, catalog Type MSM20-4FX-SM, part number 942077003, quantity and required delivery date. State the MSP host, intended slot and current module population. Include fiber type, connector, far-end model and route information, or the planned copper/SFP choice for combo interfaces.
Ask the supplier to identify the exact offered code and included accessories. For replacement work, attach the removed module label and host configuration. This lets Hirschmann MSM20-S2S2S2S2SY9HH9E99.9.99 be compared as a modular system component instead of an isolated four-port device.
