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SPECIFICATIONS
GPS RECEIVER: Motorola 12-channel
1 PPS OUTPUTS: DB-9 connector, TTL outputs, positive edge true:
#1 - 20% duty output <500nS accuracy, directly from receiver
#2 - 50% duty output < 1mS accuracy, regenerated
ESE TC OUTPUT: BNC, drives 100 readers, 4000' cable maximum
TC89 - drives non-”A” version Readers
TC90 - drives “Date” Readers and/or “A” version Readers
SMPTE/EBU TC OUTPUT: XLR, 600Ω balanced or unbalanced
RS-232C OUTPUT: DB-9 connector, ASCII Date & Time, sent once per second
RS-232C FORMAT: ESE Format “A”
ASCII @ 9600 Baud, 8 Data, No Parity, 1 Stop
MM-DD-YY<SPACE><SPACE>DDD:HH:MM:SS<CR>
Transmission is once per second and ends 7 mS before Time True.
VIDEO INPUT: BNC, RS-170 composite video / blackburst, 1 VPP, 75Ω
ACCURACY: 1PPS @ < 500nS
ESE TC @ 17mS
SMPTE/EBU @ 0 frames with respect to video sync, +/- 400 mS if free running (due
to Drop Frame compensation)
DRIFT: 33mS/Day
POWER: 117 VAC, 50/60 Hz, 15 Watts typical
MECHANICAL: Rack Mount Enclosure 1.75” H x 19" W x 9.5” D (plus connectors)
OPTION K: 10 MHz Sine wave, BNC, 4 Vpp into 50 ohms (adjustable +/- 0.5V)
1 KHz Square wave, BNC, 5 Vpp CMOS/TTL
1 PPS, 50% duty cycle, DB-9 (pin 5), 5 Vpp CMOS/TTL, < 2 µS of GPS when 10 MHz
lock LED is solid
REAR PANEL DB-9 CONNECTOR PIN DESIGNATIONS
Pin Function
1 +12 VDC - +36 VDC Input (option “DC” only)
2 RS-232 TXD
3 RS-232 RXD
4 1 PPS (20 % duty)
5 1 PPS (50 % duty)
6 Relay (Hr opt)
7 Relay (Hr opt)
8 GPS Lock
9 Ground
DIP SWITCH SETTINGS
ES-101 Logic Board
Switch Function (if switch is “ON”)
1 Mode (see table below)
2 Mode (see table below)
3 Relay Closure on the Hour only
4 TC89 24HR output
5 DOY output
6 Daylight Savings On
7 Non-Drop Frame
8 Not Used
ES-USS Logic Board (Display Logic Board)
Switch Function (if switch is “ON”)
1 Date
2 Not Used
3 Not Used
4 12 Hour Format
5 9 Digit Display
6 Not Used
7 Not Used
8 Not Used
ES-101 Logic Board Mode Switches
Mode Switch 1 Switch 2
IRIG-B OFF OFF
IRIG-E OFF ON
SMPTE ON OFF
EBU ON ON
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