Data Sheet DXC Module DHS Dual-Channel High-Speed Data Module • Two high-speed data channels • V.35, X.21, V.24, RS-530, or V.36/RS-449 synchronous interfaces • Optional high-speed 10/100BaseT Ethernet bridge ports with transparent VLAN forwarding • Programmable data rates from 56 to 1536 kbps Each DHS module provides DXC with two Each synchronous data channel operates high-speed data channels. DHS is available data rates of n × 56 or n × 64 kbps with a number of options for the user (where n = 1 to 31 for E1 and 1 to 24 for data ports, including a 10/100BaseT T1 links). Channel data rates, as well as all Ethernet bridge with transparent VLAN operating parameters, are soft-selectable. forwarding, or a choice of sync data Instead of synchronous data channels, interfaces: V.35, X.21, V.24, RS-530, or DHS can be equipped with 10/100BaseT V.36/RS-449. Ethernet interfaces for virtual LAN V.35 and V.11/RS-422 channel interfaces connections over n × 56 kbps, or n × terminate in 25-pin D-type female 64 kbps lines (ETUB option). The bridge connectors. Pin assignment is compatible filters Ethernet/Fast Ethernet frames, with RS-530 specifications. Special forwarding only frames destined to the adapter cables can be ordered to connect WAN. The 10/100BaseT module can also these channels to standalone V.35 or block broadcast and multicast messages. V.36/RS-449 equipment. X.21 and V.24 The 10/100BaseT Ethernet bridge also 2-channel, high-speed channel interfaces terminate in 15-pin features automatic MDIX support, fault D-type female connectors. propagation of WAN error conditions to data transmission the Ethernet port, and two queues for handling priorities. for the DXC family of modular cross-connects The Access Company DHS Dual-Channel High-Speed Data Module Timeslots used on the E1 or T1 link can be Self-diagnostics upon power-up, as well as Specifications either user-assigned or automatically powerful testing capabilities, reduce selected. downtime to a minimum. SYNC DATA PORTS Selectable timing modes permit each Local support of four control signals for Number of Ports synchronous data channel to be each channel is provided. 2 configured as either DCE or DTE, and The DHS module occupies one I/O slot in provide buffered retiming of the received Interface (Electrical) DXC-8R, DXC-10A or DXC-30 chassis. data. Connection to nationally supplied V.11/RS-422, V.24, V.35, X.21 digital lines (such as DDS) is supported. Interface (Physical) An external clock can be selected as the RS-530 (V.35 or V.36/RS-449 via adapter source for system timing. cables) V.24 X.21 Connectors (per Channel) 25-pin D-type female for RS-530 and V.24 15-pin D-type female for X.21 Data Rates Synchronous n × 56 or n × 64 kbps For T1: n = 1 to 24 For E1: n = 1 to 31 Figure 1. Connecting Remote Controllers with Application Servers Data Sheet Buffer GENERAL Clock Modes 120 frames (average) DCE – transmit and receive clocks to Configuration synchronous DTE Data Rate Programmable via DXC's management DTE1 – transmit clock from synchronous 10BaseT: 10 Mbps system device and receive clock to 100BaseT: 100 Mbps Diagnostics synchronous device Line Code Local loopback DTE2 – transmit and receive clocks from 10BaseT: Manchester Remote loopback synchronous DCE 100BaseT: MLT3 Interruptive monitor Control Signals Internal BERT Connector (per Channel) CTS – follows RTS or is constantly on, Auto self-test RJ-45 soft-selectable Power Consumption DSR – constantly on, unless in test mode WAN Protocol RS-530: 2.5W DCD – constantly on, unless in RED ALARM HDLC X.21: 2.2W Indicators V.24: 2.1W 10/100 FAST ETHERNET BRIDGE PORTS LINK (green) – V.35: 3.1W Number of Ports On when LAN link is on ETUB: 5.5W 2 ACT (yellow) – ETUR: 3.2W On or blinking when LAN is LAN Table Physical transmitting or receiving data 2048 MAC addresses with 5-minute Occupies a single slot in a DXC-8R, 100M (green) – automatic aging DXC-10A or DXC-30 chassis On when LAN is operating at Filtering and Forwarding For comparison of DXC chassis, see 100 Mbps, Off when LAN is operating 150,000 frames per second Table 2. For the list of DXC I/O modules, at 10 Mbps refer to the DXC-8R/10A/30 folder. Throughput Compliance Maximum n × 64 kbps IEEE 802.3/Ethernet, IEEE 802.1p (n=1 to 32); up to 2.048 Mbps data rate at the WAN side 19700 pps with 64-byte frame length and increment byte data (00, 01, 02, …) 802 pps with 1536-byte frame length and increment byte data (00, 01, 02, …) Latency LAN rate 100 Mbps, WAN rate 2 Mbps: 66 μs for 64-byte frame length 1400 μs for 1536-byte frame length Frame Size 1536 bytes maximum 772-123-09/08 Specifications are subject to change without prior notice. 1988–2008 RAD Data Communications Ltd. The RAD name, logo, logotype, and the terms EtherAccess, TDMoIP and TDMoIP Driven, and the © product names Optimux and IPmux, are registered trademarks of RAD Data Communications Ltd. All other trademarks are the property of their respective holders. Data Sheet DHS Dual-Channel High-Speed Data Module OPTIONAL ACCESSORIES CBL-HS2/R/1/@ Ordering Adaptor cable for connecting a The following cables adapt the DHS 25-pin DXC-M-HS/^ V.36/RS-449 DTE in DCE clock mode connector to the specified applications. Cable length is 2m (6 ft). A separate cable CBL-HS2/R/2 /@ Legend is required for each channel. Adaptor cable for connecting a V.36/RS- ^ User port: 449 DCE in DTE1 clock mode V35 V.35 CBL-HS2/V/1/@ 530 V.11/RS-422 interface with Adaptor cable for connecting a V.35 DTE in CBL-HS2/R/3/@ RS-530 connector (adaptable DCE clock mode Adaptor cable for connecting a V.36/RS- to V.36/RS-449 via cable) 449 DCE in DTE2 clock mode CBL-HS2/V/2/@ X21 X.21 Adaptor cable for connecting a V.35 DCE in Legend V24 V.24 DTE1 clock mode @ Cable connector on user side: ETUB Ethernet bridge port with F female CBL-HS2/V/3/@ 10/100BaseT (UTP) interface M male Adaptor cable for connecting a V.35 DCE in DTE2 clock mode Table 2. DXC Chassis Comparison Table Feature DXC-8R DXC-10A DXC-30 DXC-100* Height 1U 1U 3U 6U per nest Maximum number of ports 32 40 120 688 (8 nests) Number of I/O slots 4 5 15 86 (8 nests) System redundancy Built-in None Optional Optional E1, T1, E3, T3, STM-1 modules 9 9 9 9 XDSL, inverse multiplexing modules 9 9 9 – n x 56/64 kbps modules 9 9 9 9 Router, OC-3 modules – – – 9 ASCII, SNMP, RADview management 9 9 9 9 *The DXC-8R/10A/30 modules and DXC-100 modules are not interchangeable. International Headquarters North America Headquarters 24 Raoul Wallenberg Street 900 Corporate Drive Tel Aviv 69719, Israel Mahwah, NJ 07430, USA Tel. 972-3-6458181 Tel. 201-5291100 Fax 972-3-6498250, 6474436 Toll free 1-800-4447234 E-mail market@rad.com Fax 201-5295777 E-mail market@radusa.com The Access Company www.rad. com