Description
The Hirschmann MM20-Z6Z6Z6Z6SBHH is a modular hot-swappable media module engineered for the MICE (Modular Industrial Communication Equipment) switch series, specifically the MS20 and MS30 basic switch bodies. The “Z6” designation indicates the presence of four empty Small Form-factor Pluggable (SFP) slots designed exclusively for 100 Mbit/s Fast Ethernet SFP transceivers. The “SBHH” suffix specifies its industrial configuration class: extended operating temperature capability, standard grounding mechanics, and global industrial certifications.
Technical Specifications
| Parameter | Value / Specification |
| Brand / Manufacturer | Hirschmann (A Belden Brand) |
| Model / Part Number | MM20-Z6Z6Z6Z6SBHH |
| Product Series / Type | MICE Fast Ethernet Media Module |
| Total Ports | 4 ports |
| Port Types / Interfaces | 4 x SFP slots (100 Mbit/s Fast Ethernet transceivers required) |
| Host Switch Compatibility | Hirschmann MS20 / MS30 modular basic switches |
| Operating Voltage | Supplied via the MICE basic switch backplane rail |
| Operating Temperature | −40 to +70 °C (Extended/Hazardous environment variant) |
| Storage Temperature | −40 to +85 °C |
| Relative Humidity | 10% to 95%, non-condensing |
| Conformal Coating | Yes (denoted by specific ‘B’ variant coding matrix for harsh environments) |
| Certifications | CE, cUL 508, ISA 12.12.01 Class 1 Div 2 (Hazardous Locations — verify actual label) |
Commercial and Availability Logistics
- Product Condition: New Original (New Surplus) in original factory box, or Refurbished (fully tested under comprehensive frame-rate loads).
- Warranty: 12-month complete technical warranty covering hardware functionality.
- Availability: Generally available via surplus supply lines or extended factory procurement. Standard domestic and international dispatch runs 2 to 4 business days.
- Pricing Notice: Price fluctuates depending on manufacturing lifecycle status, regional stock availability, and continuous supply conditions. Contact us for a firm commercial quotation.
Engineering Considerations and Field Deployment Notes
SFP Speed Restrictions
The MM20 platform’s internal ASIC framework operates strictly at 100 Mbit/s (Fast Ethernet) speeds. Standard 1 Gbit/s (Gigabit) SFP transceivers will not link up or auto-negotiate if inserted into these slots. Always select compatible 100 Mbps SFP optics (such as Hirschmann M-FAST SFP series) matching the fiber topology requirements (Single-mode or Multi-mode).
Hot-Swappable Functionality
MICE media modules support active online replacement (hot-swapping) directly inside the MS20/MS30 chassis. When inserting the module, verify that the alignment side tracks line up accurately with the host switch chassis before pressing the unit firmly home to avoid bending backplane pins. Fasten the thumb screws securely to prevent mechanical movement that can result in intermittent packet losses.
Configuration Retention
The MM20 does not store port configuration data or MAC tables locally on its own circuit board. Port-specific settings—such as VLAN tag assignments, port mirroring profiles, and rate-limiting limits—are managed directly by the central processing block of the host MS20/MS30 basic switch.
Frequently Asked Questions
What is the primary difference between the MM20-Z6Z6Z6Z6SAHH and the SBHH variant?
The “SAHH” configuration designates a standard application hardware model. The “SBHH” model integrates enhanced protection parameters, which typically feature conformal coating on internal circuitry to protect components against corrosive chemical tracking or high moisture environments.
Can I mix copper (RJ45) and fiber media modules in the same MICE switch body?
Yes. The modular design enables engineers to combine various media module classes. For instance, a system can run an MM20-Z6Z6Z6Z6 fiber module in slot 1 along with an RJ45 copper media module (e.g., MM20-T1T1T1T1) in slot 2 to handle mixed field connectivity requirements.
Does this media module support Power over Ethernet (PoE)?
No. The standard MM20 series SFP hardware does not possess the step-up transformer routing or isolation circuits required to inject power into standard Ethernet links. PoE options require dedicated PoE-capable media module variants (such as the MM22 series) and appropriate external power inject systems.
Technical Notice: Always cross-reference the physical serial nameplate and the host MS20/MS30 switch HiOS/HiSecOS firmware compatibility tables in the official Hirschmann MICE hardware documentation before inserting the module during live automation operations.
