RM-G4000 Module Series

Ethernet modules for RKS-G4028 modular managed switches

Features and Benefits

-40 to 75°C operating temperature range
IEC 61850-3 and IEEE 1613 compliant

Certifications

Introduction

The RM-G4000 Module Series includes Gigabit and Fast Ethernet modules for the RKS-G4000 Series rack-mount Ethernet switches. Each RM-G4000 Series module supports up to 8 ports with a variety of interface types including TX, MSC, SSC, and MST media types. Additionally, the RM-G4000-8GPoE and RM-G4000-8PoE modules provide the RKS-G4000 Series PoE models with high-capacity PoE functionality. IEEE 1588 interface modules provide hardware-based PTP functions for precise time synchronization across the network.

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10/100BaseT(X) Ports (RJ45 connector)

RM-G4000-8TX: 8
RM-G4000-2MSC4TX: 4
RM-G4000-2MST4TX: 4
RM-G4000-2SSC4TX: 4
RM-G4000-4MSC2TX: 2
RM-G4000-4MST2TX: 2
RM-G4000-4SSC2TX: 2
10/100/1000BaseT(X) Ports (RJ45 connector)

RM-G4000-8GTX: 8
100/1000BaseSFP Slots

RM-G4000-8GSFP: 8
100BaseSFP Slots

RM-G4000-8SFP: 8
100BaseFX Ports (multi-mode SC connector)

RM-G4000-6MSC: 6
RM-G4000-2MSC4TX: 2
RM-G4000-4MSC2TX: 4
100BaseFX Ports (multi-mode ST connector)

RM-G4000-6MST: 6
RM-G4000-2MST4TX: 2
RM-G4000-4MST2TX: 4
100BaseFX Ports (single-mode ST connector)

RM-G4000-6SSC: 6
RM-G4000-2SSC4TX: 2
RM-G4000-4SSC2TX: 4
PoE Ports (10/100/1000BaseT(X), RJ45 connector)

RM-G4000-8GPoE: 8
PoE Ports (10/100BaseT(X), RJ45 connector)

RM-G4000-8PoE: 8

Optical Fiber

		100BaseFX
		Multi-Mode		Single-Mode
Fiber Cable Type		OM1	50/125 µm	G.652
Fiber Cable Type		OM1	800 MHz x km	G.652
Typical Distance		4 km	5 km	40 km
Wavelength	Typical (nm)	1300		1310
	TX Range (nm)	1260 to 1360		1280 to 1340
	RX Range (nm)	1100 to 1600		1100 to 1600
Optical Power	TX Range (dBm)	-10 to -20		0 to -5
	RX Range (dBm)	-3 to -32		-3 to -34
	Link Budget (dB)	12		29
	Dispersion Penalty (dB)	3		1
Note: When connecting a single-mode fiber transceiver, we recommend using an attenuator to prevent damage caused by excessive optical power. Note: Compute the “typical distance” of a specific fiber transceiver as follows: Link budget (dB) > dispersion penalty (dB) + total link loss (dB).

Power Consumption (Max.)

RM-G4000-8TX: 4.22 W
RM-G4000-8GTX: 4.22 W
RM-G4000-8PoE: 4.75 W
RM-G4000-8GPoE: 4.75 W
RM-G4000-8SFP: 6.91 W
RM-G4000-8GSFP: 6.91 W
RM-G4000-6MSC: 4.61 W
RM-G4000-6MST: 4.61 W
RM-G4000-6SSC: 5.47 W
RM-G4000-2MSC4TX: 2.88 W
RM-G4000-2MST4TX: 2.88 W
RM-G4000-2SSC4TX: 3.17 W
RM-G4000-4MSC2TX: 3.74 W
RM-G4000-4MST2TX: 3.74 W
RM-G4000-4SSC2TX: 4.03 W

Weight

RM-G4000-8TX: 300 g (0.66 lb)
RM-G4000-8GTX: 300 g (0.66 lb)
RM-G4000-8PoE: 500 g (1.10 lb)
RM-G4000-8GPoE: 500 g (1.10 lb)
RM-G4000-8SFP: 400 g (0.88 lb)
RM-G4000-8GSFP: 400 g (0.88 lb)
RM-G4000-6MSC: 400 g (0.88 lb)
RM-G4000-6MST: 400 g (0.88 lb)
RM-G4000-6SSC: 400 g (0.88 lb)
RM-G4000-2MSC4TX: 400 g (0.88 lb)
RM-G4000-2MST4TX: 400 g (0.88 lb)
RM-G4000-2SSC4TX: 400 g (0.88 lb)
RM-G4000-4MSC2TX: 400 g (0.88 lb)
RM-G4000-4MST2TX: 400 g (0.88 lb)
RM-G4000-4SSC2TX: 400 g (0.88 lb)

Time

RM-G4000-8TX: 12,132,675 hrs
RM-G4000-8GTX: 12,132,675 hrs
RM-G4000-8PoE: 2,063,404 hrs
RM-G4000-8GPoE: 2,063,404 hrs
RM-G4000-8SFP: 3,005,803 hrs
RM-G4000-8GSFP: 3,005,803 hrs
RM-G4000-6MSC: 2,183,161 hrs
RM-G4000-6MST: 2,183,161 hrs
RM-G4000-6SSC: 2,183,161 hrs
RM-G4000-2MSC4TX: 2,891,502 hrs
RM-G4000-2MST4TX: 2,891,502 hrs
RM-G4000-2SSC4TX: 2,891,502 hrs
RM-G4000-4MSC2TX: 2,469,891 hrs
RM-G4000-4MST2TX: 2,469,891 hrs
RM-G4000-4SSC2TX: 2,469,891 hrs
Standards

Telcordia (Bellcore), GB

Warranty Period

5 years
Details

See www.moxa.com/warranty

Download datasheet

Support Documents

Name	Type	Version	Release Date
Declaration of Conformity (EU/UK) for RKS-G4028 with RM-G4000 Module Series Download 317.0 KB	Declaration	v1.1	Sep 11, 2026 Sep 11, 2026
Product Change Notification for RM-G4000-8PoE and RM-G4000-8GPoE Download 121.0 KB	Notification	v1.0	Aug 17, 2026 Aug 17, 2026
Datasheet for RM-G4000 Module Series Download 704.1 KB	Datasheet	v1.2	Feb 12, 2026 Feb 12, 2026
IEC 62443-4-2 Security Level 2 Certification for RKS-G4028 With RM-G4000 Module Series Download 257.7 KB	Declaration	v1.0	Jun 14, 2022 Jun 14, 2022
IEC 62443-4-2 Security Level 2 Certification for RKS-G4028-L3 With RM-G4000 Module Series Download 258.1 KB	Declaration	v1.0	Jun 14, 2022 Jun 14, 2022

Available Models (15)

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	Compare RM-G4000-8GTX	Compare RM-G4000-8TX	Compare RM-G4000-8GSFP	Compare RM-G4000-8SFP
10/100/1000BaseT(X) Ports	8	–	–	–
10/100BaseT(X) Ports	–	8	–	–
100/1000BaseSFP Ports	–	–	8	–
100BaseSFP Ports	–	–	–	8
100BaseFX Ports Multi-mode, SC Connector	–	–	–	–
100BaseFX Port Multi-mode, ST Connector	–	–	–	–
100BaseFX Port Single-mode, SC Connector	–	–	–	–
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	Compare RM-G4000-6MSC	Compare RM-G4000-6MST	Compare RM-G4000-6SSC	Compare RM-G4000-4MSC2TX
10/100/1000BaseT(X) Ports	–	–	–	–
10/100BaseT(X) Ports	–	–	–	2
100/1000BaseSFP Ports	–	–	–	–
100BaseSFP Ports	–	–	–	–
100BaseFX Ports Multi-mode, SC Connector	6	–	–	4
100BaseFX Port Multi-mode, ST Connector	–	6	–	–
100BaseFX Port Single-mode, SC Connector	–	–	6	–
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	Compare RM-G4000-4MST2TX	Compare RM-G4000-4SSC2TX	Compare RM-G4000-2MSC4TX	Compare RM-G4000-2MST4TX
10/100/1000BaseT(X) Ports	–	–	–	–
10/100BaseT(X) Ports	2	2	4	4
100/1000BaseSFP Ports	–	–	–	–
100BaseSFP Ports	–	–	–	–
100BaseFX Ports Multi-mode, SC Connector	–	–	2	–
100BaseFX Port Multi-mode, ST Connector	4	–	–	2
100BaseFX Port Single-mode, SC Connector	–	4	–	–
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	Compare RM-G4000-2SSC4TX	Compare RM-G4000-8GPoE	Compare RM-G4000-8PoE
10/100/1000BaseT(X) Ports	–	8 (IEEE 802.3bt PoE)	–
10/100BaseT(X) Ports	4	–	8 (IEEE 802.3bt PoE)
100/1000BaseSFP Ports	–	–	–
100BaseSFP Ports	–	–	–
100BaseFX Ports Multi-mode, SC Connector	–	–	–
100BaseFX Port Multi-mode, ST Connector	–	–	–
100BaseFX Port Single-mode, SC Connector	2	–	–
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