Specifications

Page 2–4
FOCUS System Manual
Table 2–1. FOCUS Chassis Catalog Number Options.
Typical Catalog Number
F P A 1 N A A
1 2 3 4 5 6 7
Catalog Number Position
FOCUS - T1/E1 Multiplexer
Base Unit
Maintenance Module MV2, MV3, or MV5 (Set for T1), Chassis, Motherboard F
Maintenance Module MV4 or MV5 (Set for E1), Chassis, Motherboard E
Service Voice Channel
Party line orderwire P
None Supplied N
Chassis and Mounting
1
3 RU standard chassis w/front mounting ears & barrier-type terminal blocks A
3 RU standard chassis w/mid-front mounting ears & barrier-type terminal blocks B
Same as A but with compression-type terminal blocks C
Same as B but with compression-type terminal blocks D
4 RU CE certified chassis
2
w/adjustable mounting ears, barrier-type terminal blocks E
Main Power Supply
24 Vdc 3
48/60 Vdc 4
110/125 Vdc/Vac 1
220/250 Vdc/Vac 2
Redundant Power Supply
24 Vdc 3
48/60 Vdc 4
110/125 Vdc/Vac 1
220/250 Vdc/Vac 2
None Supplied N
Transceiver Position One
I/O Interface for Single Transceiver Module
or First Transceiver of Dual Transceiver Module
1300 nm Laser A
1550 nm Laser C
Electrical (120Ω balanced, RJ48C or DB9 connectors) E
Electrical (75Ω unbalanced, BNC connectors) P
1300 nm Laser with Hot Standby F
1550 nm Laser with Hot Standby G
I/O Interface for Second Transceiver of Dual Transceiver Module
1300 nm Laser (programmable as single or dual) A
1550 nm Laser (programmable as single or dual) C
Electrical (programmable as single/dual, 120Ω, balanced RJ48C or DB9) E
Electrical (75Ω unbalanced, BNC connectors) P
1300 nm Laser with Hot Standby F
1550 nm Laser with Hot Standby G
1300 nm Laser, Four-Fiber Hot Standby L
1550 nm Laser, Four-Fiber Hot Standby M
None Supplied (Single Transceiver Module) N