Model: MC-1-M (2U)
Doc. Ref. no. : - m05/om/101
Issue no. 14
Page 91 of 103
User’s Manual
15.2 Optional Module – 1PPS Output
GPS Master Clock Model MC-1-M model is available with optional add-on module having two 1PPS
outputs per module. 1PPS output is available at BNC terminal on rear panel unit labeled as 1PPS.
15.2.1 Specifications:
1PPS Output: 5V TTL Pulse into 250
Ω
load
1PPS Pulse Width: 20% duty cycle (fixed) (200 milliseconds High level & 800 milliseconds
Low level signal)
Interface type: BNC Female connector (at unit’s rear panel)
GPS Master Clock Model MC-1-M model can be configured for total 8 additional optional 1PPS outputs
considering if no other type of optional outputs is configured.
15.3 Optional Module – IRIG-B TTL
GPS Master Clock model MC-1-M model is available with optional add-on module having two IRIG-B
DCLS outputs per module. IRIG-B DCLS output is available at BNC terminal on rear panel unit labeled as
IRIG-B TTLx, x varies from 2 to 9.
15.3.1 Specifications:
Output Protocol: IRIG-B 007 & IEEE 1344 C37.118-2005 (Field Selectable)
Interface type: BNC Female connector (at unit’s rear panel)
Load Capacity: 50
Ω
@ 5V
GPS Master Clock model MC-1-M can be configured for total 8 additional optional IRIG-B DCLS outputs
considering if no other type of optional outputs is configured.
NOTE:
1) All the IRIG-B time code will have same configuration as shown in Telnet menu of ETH0
(NTP 1) port.
2) ADD-On module of IRIG-B DCLS time code signal cannot be configured differently than
standard IRIG-B DCLS time code both will have same configuration.
15.4 Optional Module – IRIG-B AM
GPS Master Clock model MC-1-M is available with op
tional add-on module having two IRIG-B AM
outputs per module. IRIG-B AM output is available at BNC terminal on rear panel unit labeled as
MOD.IRIG-Bx, x varies from 2 to 9.
15.4.1 Specifications:
Output Protocol: IRIG-B 127 & IEEE 1344 C37.118-2005 (Field Selectable)
Interface type: BNC Female connector (at unit’s rear panel)
Load Capacity: 100
Ω
@ 3.3Vpp
