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Chasis for Central Office |
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WorldDSL is ADC’s line of high-speed HDSL access devices specifically designed for the diverse
telecommunications needs of global markets. Ideal for telco and enterprise networks, WorldDSL
products comply with international standards to ensure compatibility, performance and safety
within your network environment. Each WorldDSL chassis accommodates any mix of LTUs or
UTUs. The EMS-830 is designed for those countries that utilize rear mounted connections, while
the EMS-832 has an extended backplane that enables front access to all connections.
WorldDSL chassis are fully connectorized for a management card. Any WorldDSL management
card may be installed, enabling the entire shelf to be managed locally or remotely through a dialup
modem or Ethernet LAN. The management card is equipped with six Form C dry contact
relays which are software driven to indicate critical, major and minor alarms. Alarms may be
generated by any HDSL modem or by the management card.
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Features: |
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- Rugged steel units
- Mounts in 19 or 21 inch standard racks
- Dual (A and B) DC power inputs
- Fully connectorized
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- Rear mounted connections or extended backplane for front access to all connections
- Meets international safety and emissions criteria
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*Note: Effective 1 January 2001, if a CE mark is required, add an “L2” suffix to the Catalog No.,
and change the last segment of the Part No. from “-01” to “-11”.
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EMS-830 and EMS-832
Capacity 1 to 16 WorldDSL LTUs or UTUs (any mix) and 1 management card}
HDSL Interface Connector: Amphenol type Telco 25-pair (EMS-830)
DB9F, adapters available (EMS-832)
Protection: ITU-T K.20 and K.21 compliant
E1 Interface Impedance: 120 Ω balanced or 75 Ω unbalanced
Connector: both D15F (balanced) and BNC (unbalanced)
Data Interface Connector: D25F, adapters available
Performance Alarms: Form C relay contacts normally open, normally closed and common are brought
to connectors for each HDSL and management card
Power DC Input Power: -36VDC to 72VDC
Requirements DC Connector: -48VDC, return, frame ground, A and B inputs
Physical Size (H x W x D): 175 x 430 x 263 mm (EMS-830)
350 x 432 x 250 mm (EMS-832)
Weight: 7.7 Kg (EMS-830)
9.1 Kg (EMS-832)
Environmental Operating Temperature: -5°C to +50°C
Storage Temperature: -40°C to + 85°C
Humidity: up to 95% RH -noncondensing
Regulatory CE marked (see CE Declaration for specific combinations allowed)
Safety: EN60950
Emissions and Immunity: EN55022, EN-50081-1, EN-50082-1 (prior to 1 January 2001)
EN 300386-2 (after 1 January 2001)
Lightning Protection: K.20 and K.21 |
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