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Operating and Programming
Getting Started
1-6
Table 1-1 Rear-Panel Telecommunications Options Connections
Item
Number
Function
Connector
Type
Signal Characteristics
1
8 kHz Sync In BNC (F)
8 kHz, TTL level, into 50 Ω
2
8 kHz Sync Out BNC (F)
8 kHz, TTL level, into 50 Ω
3*
Framed Output BNC (F)
4.8 V p-p max into 75 Ω
(6V p-p into 100, or 120 Ω)
4*
Sync Out BNC (F)
3 V p-p max into 75 Ω
5
Sync Out BNC (F)
TTL level, into 50 Ω
6
Dc Power Fuse Cartridge
Fuse
Fuses external dc power, 2.5 amp, 250-
volt rating (part number 2110-0952)
7
Dc Power Input 5-Screw
Terminal
Strip
40 - 58 Vdc, 100 W Max, as labeled on
rear panel (See bottom of page 1-10)
* Note: Item 3, Framed Output complies with ITU-T (formerly CCITT) G.703/6 (G.703/2
if option 104 or 105 is present) formatted per G.704.
Item 4, per G.703/10, 75 Ω (Additionally @ 1.544 MHz if option 104 or 105
present).
Starting The 5071A
Bottom of page 1-6. * note is changed:
* 1 entry may be present: “Power source is BATT”
Performing Basic Tasks
Synchronizing to an External 1 PPS Reference
Observe the following changes to the external synchronization
procedure:
References to 1 PPS outputs and Sync inputs are singular.
Reference to rear-panel 1 pps output(s) and Sync input do not apply.
Use of the front-panel ARM REAR menu option will always result in
the display showing Sync timed out.
Powering Down the 5071A
This procedure is deleted.
Option 048:
Any TCO Option:
Option 048: