WMHS-ERT-I

Weatherproof VoIP Emergency Rail Telephone

Name: SMART WMHS-ERT-I Weatherproof VoIP Emergency Rail Telephone
Brand: SMART
SKU: wmhs-ert-i

SIP trackside phone in die-cast aluminium for rail and metro networks

SIPIP 65100–220 V AC2 kg

Datasheet · PDF 1.1 MB

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Category: Rail & Metro Telephones
Environment: Outdoor
Interface: IP

Ideal for

Railway track lines
Metro track lines
Tunnels and stations

What it does

The SMART emergency rail telephone for track networks built on IP. WMHS-ERT-I is a SIP phone for any standard IP PABX, in the same IP 65 aluminium die-cast housing as the analogue model, with keypad and non-keypad versions.

01
SIP phone for any standard IP PABX
02
10/100 Mbps RJ-45 Ethernet port
03
IP 65 aluminium alloy die-cast housing
04
Keypad and non-keypad (non-dial) versions
05
Codecs: G.711, G.722 wide-band, G.726-32, G.729 A/B

Specifications

Electrical · 1

Power supply	Universal input 100–220 V AC

Acoustic · 1

Microphone	Noise reducing dynamic

Mechanical · 7

Hook switch life	> 1,000,000 operations (magnetic reed)
Housing	Aluminium alloy die-cast, powder coated
Dimensions	280 × 250 × 70 mm
Weight	2 kg
Handset material	High impact ABS
Mounting	Vertical wall
Handset cord	Stainless steel

Environmental · 4

Operating temperature	0 °C to 40 °C
Storage temperature	-10 °C to 60 °C
Humidity	10 to 90% non-condensing
IP rating	IP 65

Connectivity · 5

Protocols	SIP RFC3261, TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP/RARP, ICMP, DNS (A record, SRV, NAPTR), DHCP, SSH, TFTP, NTP, STUN, SIMPLE, LLDP-MED, LDAP, TR-069, 802.1x, TLS, SRTP
Network interface	10/100 Mbps RJ 45 Ethernet port
Voice codecs	G.711, G.722 (wide-band), G.726-32, G.729 A/B
DTMF	In-band and out-of-band (in audio, RFC2833, SIP INFO)
Voice processing	VAD, CNG, AEC, PLC, AJB, AGC

Compare with similar models

Differences first: interface, power, protection and output, then installation. Full specifications are in each model's table.

Comparison of WMHS-ERT-I with similar models. Rows that differ come first; “Not specified” means the datasheet does not list it.
Specification	WMHS-ERT-I Weatherproof VoIP Emergency Rail Telephone	WMHS-ERT-A Weatherproof Analog Emergency Rail Telephone	WMHS-IP · SIP SIP VoIP Phone	WMHS-IIIWP-VOIP Industrial Weatherproof VoIP Telephone
Poweringdiffers	Not specified	Not specified	Mains AC or PoE100–220 V AC; PoE on WMHS-IP-POE	Mains AC110/220 V AC
Vandal-resistantdiffers	Not specified	Not specified	Yes	Nohandset model
Interfacediffers	IP	Analogue	IP	IP
Protocoldiffers	Not specified	Not specified	Standard SIP	Standard Internet Protocol (IP)
Power supplydiffers	Universal input 100–220 V AC	Not specified	Universal input 100–220 V AC; PoE IEEE802.3af (model WMHS-IP-POE)	110 / 220 V AC (externally powered)
Environmentdiffers	Outdoor	Outdoor	Indoor, Outdoor	Indoor, Outdoor
Operating temperaturediffers	0 °C to 40 °C	Not specified	-10 °C to +60 °C	Not specified
Humiditydiffers	10 to 90% non-condensing	0 to 95% Rh non-condensing	10 to 90% non-condensing	0 to 95% Rh non-condensing
Housingdiffers	Aluminium alloy die-cast, powder coated	Aluminium alloy die-cast, powder coated	16 SWG powder-coated steel body	Aluminium alloy, powder coated
Dimensionsdiffers	280 × 250 × 70 mm	280 × 250 × 70 mm	360 × 160 × 180 mm	422 × 197 × 146 mm
Weightdiffers	2 kg	2 kg	Not specified	8 kg
Handset materialdiffers	High impact ABS	High impact ABS (spec) – 'stainless steel vandal-proof handset' in features	High impact ABS	High impact ABS