Cirrus 1 Multiplexer Specification

• E1 Ports:
BNC (75ohm unbalanced)
• LCT:
1 x 9 way 'D' male (RS232 only)
• Multi-function Port:
2 x RJ45 (RS232 or RS422)

• Rack Practice:
19" - alternative brackets are available
• Dimensions:
1U (1.75"), 185mm plus 35 mm stand-back
• Weight:
1.5Kg
• Power:
4-way Slim-line Trident
• Power Supply:
24V or 48V nominal (18V DC to 72 V DC), positive or negative ground permitted
• Power Consumption:
• Motherboard only (no modules): 4-5W (typical)
• Dual 4-wire Audio Module: 0.95 W (typical)
• Dual Asynchronous Data Module: 0.3 (typical)
• X.21 Spur/SDM: 0.5 (typical)
• Enviromental:
Complies with requirements given in the 'Generic Enviromental and Safety Requirements for Data and Information Technology Ltd' - D95-0013.
Also complies with ETS 300 386-1

• Single Channel Asynchronous Data Interface
• Dual Channel Asynchronous Data Interface
• Dual 4 Wire Audio Module with Signalling
• Engineer Order Wire EOW interface
• FXO Telephone Exchange Service Interface
• FXS Telephone SUBS Service Interface
• Ethernet Bridge Interface
• G.703 Co-directional Synchronous Data Interface
• Single Channel X.21 Interface